21010320210112 has 42 divisors (see below), whose sum is σ = 44002179930948. Its totient is φ = 9952256930688.

The previous prime is 21010320210079. The next prime is 21010320210221. The reversal of 21010320210112 is 21101202301012.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454666998 + ... + 454713205.

Almost surely, 2^{21010320210112} is an apocalyptic number.

It is an amenable number.

21010320210112 is an abundant number, since it is smaller than the sum of its proper divisors (22991859720836).

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

21010320210112 is an equidigital number, since it uses as much as digits as its factorization.

21010320210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909380253 (or 909380224 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21010320210112 its reverse (21101202301012), we get a palindrome (42111522511124).

The spelling of 21010320210112 in words is "twenty-one trillion, ten billion, three hundred twenty million, two hundred ten thousand, one hundred twelve".