10102021212 has 96 divisors (see below), whose sum is σ = 24945629184. Its totient is φ = 3177504000.

The previous prime is 10102021207. The next prime is 10102021229. The reversal of 10102021212 is 21212020101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2515318 + ... + 2519330.

It is an arithmetic number, because the mean of its divisors is an integer number (259850304).

Almost surely, 2^10102021212 is an apocalyptic number.

10102021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10102021212 is an abundant number, since it is smaller than the sum of its proper divisors (14843607972).

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

10102021212 is a wasteful number, since it uses less digits than its factorization.

10102021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219 (or 4217 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10102021212 its reverse (21212020101), we get a palindrome (31314041313).

The spelling of 10102021212 in words is "ten billion, one hundred two million, twenty-one thousand, two hundred twelve".