22021312310 has 32 divisors (see below), whose sum is σ = 40161251520. Its totient is φ = 8692999168.

The previous prime is 22021312309. The next prime is 22021312337. The reversal of 22021312310 is 1321312022.

It is a super-2 number, since 2×22021312310² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221471 + ... + 305109.

It is an arithmetic number, because the mean of its divisors is an integer number (1255039110).

Almost surely, 2^22021312310 is an apocalyptic number.

22021312310 is a deficient number, since it is larger than the sum of its proper divisors (18139939210).

22021312310 is a wasteful number, since it uses less digits than its factorization.

22021312310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83992.

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

Adding to 22021312310 its reverse (1321312022), we get a palindrome (23342624332).

The spelling of 22021312310 in words is "twenty-two billion, twenty-one million, three hundred twelve thousand, three hundred ten".