10021111210212 has 24 divisors (see below), whose sum is σ = 23823773822016. Its totient is φ = 3277344546528.

The previous prime is 10021111210207. The next prime is 10021111210213. The reversal of 10021111210212 is 21201211112001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10021111210191 and 10021111210200.

It is not an unprimeable number, because it can be changed into a prime (10021111210213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7878231448 + ... + 7878232719.

It is an arithmetic number, because the mean of its divisors is an integer number (992657242584).

Almost surely, 2^{10021111210212} is an apocalyptic number.

10021111210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10021111210212 is an abundant number, since it is smaller than the sum of its proper divisors (13802662611804).

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

10021111210212 is a wasteful number, since it uses less digits than its factorization.

10021111210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15756464227 (or 15756464225 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10021111210212 its reverse (21201211112001), we get a palindrome (31222322322213).

The spelling of 10021111210212 in words is "ten trillion, twenty-one billion, one hundred eleven million, two hundred ten thousand, two hundred twelve".