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1002112220020 = 225716011174231
BaseRepresentation
bin11101001010100101000…
…10101111101101110100
310112210121220221022122011
432211102202233231310
5112404311212020040
62044210342414004
7132254163216622
oct16452242575564
93483556838564
101002112220020
11356aa225007a
12142271431304
1373663a74882
1436706b94512
151b101de43ea
hexe9528afb74

1002112220020 has 48 divisors (see below), whose sum is σ = 2137628295936. Its totient is φ = 394541280000.

The previous prime is 1002112220003. The next prime is 1002112220063. The reversal of 1002112220020 is 200222112001.

It is a happy number.

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, 266305 + ... + 1440535.

It is an arithmetic number, because the mean of its divisors is an integer number (44533922832).

Almost surely, 21002112220020 is an apocalyptic number.

1002112220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002112220020 is an abundant number, since it is smaller than the sum of its proper divisors (1135516075916).

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

1002112220020 is a wasteful number, since it uses less digits than its factorization.

1002112220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174912 (or 1174910 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002112220020 its reverse (200222112001), we get a palindrome (1202334332021).

The spelling of 1002112220020 in words is "one trillion, two billion, one hundred twelve million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 601 710 1202 1420 2404 3005 6010 12020 42671 85342 170684 213355 426710 853420 1174231 2348462 4696924 5871155 11742310 23484620 83370401 166740802 333481604 416852005 705712831 833704010 1411425662 1667408020 2822851324 3528564155 7057128310 14114256620 50105611001 100211222002 200422444004 250528055005 501056110010 1002112220020