21013232222010 has 64 divisors (see below), whose sum is σ = 59495529406464. Its totient is φ = 4648088232000.

The previous prime is 21013232221939. The next prime is 21013232222023. The reversal of 21013232222010 is 1022223231012.

It is a super-2 number, since 2×21013232222010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon 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, 1613913016 + ... + 1613926035.

It is an arithmetic number, because the mean of its divisors is an integer number (929617646976).

Almost surely, 2^{21013232222010} is an apocalyptic number.

21013232222010 is an abundant number, since it is smaller than the sum of its proper divisors (38482297184454).

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

21013232222010 is a wasteful number, since it uses less digits than its factorization.

21013232222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227839099.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21013232222010 its reverse (1022223231012), we get a palindrome (22035455453022).

The spelling of 21013232222010 in words is "twenty-one trillion, thirteen billion, two hundred thirty-two million, two hundred twenty-two thousand, ten".