1021211020112 has 20 divisors (see below), whose sum is σ = 1978632529056. Its totient is φ = 510596173920.

The previous prime is 1021211020111. The next prime is 1021211020133. The reversal of 1021211020112 is 2110201121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021211020111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365687 + ... + 1475177.

Almost surely, 2^{1021211020112} is an apocalyptic number.

It is an amenable number.

1021211020112 is a deficient number, since it is larger than the sum of its proper divisors (957421508944).

1021211020112 is a wasteful number, since it uses less digits than its factorization.

1021211020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167026 (or 1167020 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021211020112 its reverse (2110201121201), we get a palindrome (3131412141313).

The spelling of 1021211020112 in words is "one trillion, twenty-one billion, two hundred eleven million, twenty thousand, one hundred twelve".