1021100221112 has 16 divisors (see below), whose sum is σ = 1914720687000. Its totient is φ = 510508037920.

The previous prime is 1021100221103. The next prime is 1021100221139. The reversal of 1021100221112 is 2111220011201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5155814 + ... + 5350197.

Almost surely, 2^{1021100221112} is an apocalyptic number.

It is an amenable number.

1021100221112 is a deficient number, since it is larger than the sum of its proper divisors (893620465888).

1021100221112 is a wasteful number, since it uses less digits than its factorization.

1021100221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10518166 (or 10518162 counting only the distinct ones).

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

Adding to 1021100221112 its reverse (2111220011201), we get a palindrome (3132320232313).

The spelling of 1021100221112 in words is "one trillion, twenty-one billion, one hundred million, two hundred twenty-one thousand, one hundred twelve".