1021211100112 has 40 divisors (see below), whose sum is σ = 2334196808192. Its totient is φ = 423543772800.

The previous prime is 1021211100089. The next prime is 1021211100131. The reversal of 1021211100112 is 2110011121201.

It is a happy number.

It is a super-2 number, since 2×1021211100112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021211100092 and 1021211100101.

It is a congruent number.

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, 147060339 + ... + 147067282.

Almost surely, 2^{1021211100112} is an apocalyptic number.

It is an amenable number.

1021211100112 is an abundant number, since it is smaller than the sum of its proper divisors (1312985708080).

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

1021211100112 is a wasteful number, since it uses less digits than its factorization.

1021211100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294127667 (or 294127661 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021211100112 its reverse (2110011121201), we get a palindrome (3131222221313).

The spelling of 1021211100112 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred thousand, one hundred twelve".