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122212021211020 = 225131393381627593
BaseRepresentation
bin11011110010011010110100…
…000111001000111110001100
3121000201100120212221100210201
4123302122310013020332030
5112004310204412223040
61111531232200143244
734512345546224536
oct3362326407107614
9530640525840721
10122212021211020
1135a38910a04a34
1211859612767b24
13532670c660410
142227144380856
15e1e036117a9a
hex6f26b41c8f8c

122212021211020 has 48 divisors (see below), whose sum is σ = 278375583538080. Its totient is φ = 44799802338816.

The previous prime is 122212021211017. The next prime is 122212021211089. The reversal of 122212021211020 is 20112120212221.

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, 1690777657 + ... + 1690849936.

It is an arithmetic number, because the mean of its divisors is an integer number (5799491323710).

Almost surely, 2122212021211020 is an apocalyptic number.

122212021211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212021211020 is an abundant number, since it is smaller than the sum of its proper divisors (156163562327060).

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

122212021211020 is a wasteful number, since it uses less digits than its factorization.

122212021211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381627754 (or 3381627752 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122212021211020 its reverse (20112120212221), we get a palindrome (142324141423241).

The spelling of 122212021211020 in words is "one hundred twenty-two trillion, two hundred twelve billion, twenty-one million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 139 260 278 556 695 1390 1807 2780 3614 7228 9035 18070 36140 3381627593 6763255186 13526510372 16908137965 33816275930 43961158709 67632551860 87922317418 175844634836 219805793545 439611587090 470046235427 879223174180 940092470854 1880184941708 2350231177135 4700462354270 6110601060551 9400924708540 12221202121102 24442404242204 30553005302755 61106010605510 122212021211020