21023010300212 has 24 divisors (see below), whose sum is σ = 37661278714752. Its totient is φ = 10262845252800.

The previous prime is 21023010300181. The next prime is 21023010300239. The reversal of 21023010300212 is 21200301032012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24616364 + ... + 25456067.

It is an arithmetic number, because the mean of its divisors is an integer number (1569219946448).

Almost surely, 2^{21023010300212} is an apocalyptic number.

It is an amenable number.

21023010300212 is a deficient number, since it is larger than the sum of its proper divisors (16638268414540).

21023010300212 is a wasteful number, since it uses less digits than its factorization.

21023010300212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50074919 (or 50074917 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21023010300212 its reverse (21200301032012), we get a palindrome (42223311332224).

The spelling of 21023010300212 in words is "twenty-one trillion, twenty-three billion, ten million, three hundred thousand, two hundred twelve".