10021003212 has 24 divisors (see below), whose sum is σ = 25508008512. Its totient is φ = 3036667600.

The previous prime is 10021003207. The next prime is 10021003219. The reversal of 10021003212 is 21230012001.

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

It is not an unprimeable number, because it can be changed into a prime (10021003219) 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, 37958214 + ... + 37958477.

It is an arithmetic number, because the mean of its divisors is an integer number (1062833688).

Almost surely, 2^10021003212 is an apocalyptic number.

10021003212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10021003212 is an abundant number, since it is smaller than the sum of its proper divisors (15487005300).

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

10021003212 is a wasteful number, since it uses less digits than its factorization.

10021003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75916709 (or 75916707 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10021003212 its reverse (21230012001), we get a palindrome (31251015213).

The spelling of 10021003212 in words is "ten billion, twenty-one million, three thousand, two hundred twelve".