22323121232220 has 48 divisors (see below), whose sum is σ = 69449710501920. Its totient is φ = 5952832328448.

The previous prime is 22323121232213. The next prime is 22323121232249. The reversal of 22323121232220 is 2223212132322.

22323121232220 is a `hidden beast` number, since 2 + 2 + 3 + 2 + 312 + 1 + 2 + 322 + 20 = 666.

It is a super-3 number, since 3×22323121232220³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 20669556157 + ... + 20669557236.

It is an arithmetic number, because the mean of its divisors is an integer number (1446868968790).

Almost surely, 2^{22323121232220} is an apocalyptic number.

22323121232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22323121232220 is an abundant number, since it is smaller than the sum of its proper divisors (47126589269700).

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

22323121232220 is a wasteful number, since it uses less digits than its factorization.

22323121232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41339113411 (or 41339113403 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 22323121232220 its reverse (2223212132322), we get a palindrome (24546333364542).

The spelling of 22323121232220 in words is "twenty-two trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred twenty".