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122020122112220 = 225109210359266081
BaseRepresentation
bin11011101111101000000110…
…000010001011000011011100
3121000001000021002221002122002
4123233220012002023003130
5111443134202230042340
61111303134212341432
734462443242625353
oct3357500602130334
9530030232832562
10122020122112220
1135974496968802
1211828398014878
1353115a9752107
14221bb3c11099a
15e19053e70715
hex6efa0608b0dc

122020122112220 has 48 divisors (see below), whose sum is σ = 258595303982400. Its totient is φ = 48359856936960.

The previous prime is 122020122112211. The next prime is 122020122112237. The reversal of 122020122112220 is 22211221020221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122020122112192 and 122020122112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458449580 + ... + 458715660.

It is an arithmetic number, because the mean of its divisors is an integer number (5387402166300).

Almost surely, 2122020122112220 is an apocalyptic number.

122020122112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020122112220 is an abundant number, since it is smaller than the sum of its proper divisors (136575181870180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122020122112220 is a wasteful number, since it uses less digits than its factorization.

122020122112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476558 (or 476556 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122020122112220 its reverse (22211221020221), we get a palindrome (144231343132441).

The spelling of 122020122112220 in words is "one hundred twenty-two trillion, twenty billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 210359 266081 420718 532162 841436 1051795 1064324 1330405 2103590 2660810 4207180 5321620 22929131 29002829 45858262 58005658 91716524 114645655 116011316 145014145 229291310 290028290 458582620 580056580 55972533079 111945066158 223890132316 279862665395 559725330790 1119450661580 6101006105611 12202012211222 24404024422444 30505030528055 61010061056110 122020122112220