100001211020012 has 6 divisors (see below), whose sum is σ = 175002119285028. Its totient is φ = 50000605510004.

The previous prime is 100001211019981. The next prime is 100001211020021. The reversal of 100001211020012 is 210020112100001.

It is a junction number, because it is equal to n+sod(n) for n = 100001211019975 and 100001211020002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500151377498 + ... + 12500151377505.

It is an arithmetic number, because the mean of its divisors is an integer number (29167019880838).

Almost surely, 2^{100001211020012} is an apocalyptic number.

It is an amenable number.

100001211020012 is a deficient number, since it is larger than the sum of its proper divisors (75000908265016).

100001211020012 is a wasteful number, since it uses less digits than its factorization.

100001211020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25000302755007 (or 25000302755005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100001211020012 its reverse (210020112100001), we get a palindrome (310021323120013).

The spelling of 100001211020012 in words is "one hundred trillion, one billion, two hundred eleven million, twenty thousand, twelve".