21331222303310 has 16 divisors (see below), whose sum is σ = 40065600152736. Its totient is φ = 8161511142048.

The previous prime is 21331222303271. The next prime is 21331222303351. The reversal of 21331222303310 is 1330322213312.

It is a super-2 number, since 2×21331222303310² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21331222303310.

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, 46372222169 + ... + 46372222628.

It is an arithmetic number, because the mean of its divisors is an integer number (2504100009546).

Almost surely, 2^{21331222303310} is an apocalyptic number.

21331222303310 is a deficient number, since it is larger than the sum of its proper divisors (18734377849426).

21331222303310 is a wasteful number, since it uses less digits than its factorization.

21331222303310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92744444827.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21331222303310 its reverse (1330322213312), we get a palindrome (22661544516622).

The spelling of 21331222303310 in words is "twenty-one trillion, three hundred thirty-one billion, two hundred twenty-two million, three hundred three thousand, three hundred ten".