10213021212 has 12 divisors (see below), whose sum is σ = 23830382856. Its totient is φ = 3404340400.

The previous prime is 10213021211. The next prime is 10213021213. The reversal of 10213021212 is 21212031201.

It is an interprime number because it is at equal distance from previous prime (10213021211) and next prime (10213021213).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 10213021191 and 10213021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213021211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425542539 + ... + 425542562.

It is an arithmetic number, because the mean of its divisors is an integer number (1985865238).

Almost surely, 2^10213021212 is an apocalyptic number.

10213021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10213021212 is an abundant number, since it is smaller than the sum of its proper divisors (13617361644).

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

10213021212 is a wasteful number, since it uses less digits than its factorization.

10213021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851085108 (or 851085106 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10213021212 its reverse (21212031201), we get a palindrome (31425052413).

The spelling of 10213021212 in words is "ten billion, two hundred thirteen million, twenty-one thousand, two hundred twelve".