21223333223310 has 64 divisors (see below), whose sum is σ = 52316945755200. Its totient is φ = 5506142211072.

The previous prime is 21223333223291. The next prime is 21223333223327. The reversal of 21223333223310 is 1332233332212.

It is a super-2 number, since 2×21223333223310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 12839386 + ... + 14397794.

It is an arithmetic number, because the mean of its divisors is an integer number (817452277425).

Almost surely, 2^{21223333223310} is an apocalyptic number.

21223333223310 is an abundant number, since it is smaller than the sum of its proper divisors (31093612531890).

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

21223333223310 is a wasteful number, since it uses less digits than its factorization.

21223333223310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570725.

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 21223333223310 its reverse (1332233332212), we get a palindrome (22555566555522).

The spelling of 21223333223310 in words is "twenty-one trillion, two hundred twenty-three billion, three hundred thirty-three million, two hundred twenty-three thousand, three hundred ten".