1012112111212 has 24 divisors (see below), whose sum is σ = 1839938385600. Its totient is φ = 486561457536.

The previous prime is 1012112111207. The next prime is 1012112111221. The reversal of 1012112111212 is 2121112112101.

It is a super-2 number, since 2×1012112111212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18225633 + ... + 18281080.

It is an arithmetic number, because the mean of its divisors is an integer number (76664099400).

Almost surely, 2^{1012112111212} is an apocalyptic number.

It is an amenable number.

1012112111212 is a deficient number, since it is larger than the sum of its proper divisors (827826274388).

1012112111212 is a wasteful number, since it uses less digits than its factorization.

1012112111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36506985 (or 36506983 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1012112111212 its reverse (2121112112101), we get a palindrome (3133224223313).

The spelling of 1012112111212 in words is "one trillion, twelve billion, one hundred twelve million, one hundred eleven thousand, two hundred twelve".