20121212101002 has 192 divisors, whose sum is σ = 42318078566400. Its totient is φ = 6374772264960.

The previous prime is 20121212100973. The next prime is 20121212101021. The reversal of 20121212101002 is 20010121212102.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34872117738 + ... + 34872118314.

It is an arithmetic number, because the mean of its divisors is an integer number (220406659200).

Almost surely, 2^{20121212101002} is an apocalyptic number.

20121212101002 is an abundant number, since it is smaller than the sum of its proper divisors (22196866465398).

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

20121212101002 is a wasteful number, since it uses less digits than its factorization.

20121212101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20121212101002 its reverse (20010121212102), we get a palindrome (40131333313104).

The spelling of 20121212101002 in words is "twenty trillion, one hundred twenty-one billion, two hundred twelve million, one hundred one thousand, two".