23220421044 has 24 divisors (see below), whose sum is σ = 54208169568. Its totient is φ = 7736256480.

The previous prime is 23220421027. The next prime is 23220421061. The reversal of 23220421044 is 44012402232.

It is an interprime number because it is at equal distance from previous prime (23220421027) and next prime (23220421061).

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, 460522 + ... + 508449.

It is an arithmetic number, because the mean of its divisors is an integer number (2258673732).

Almost surely, 2^23220421044 is an apocalyptic number.

It is an amenable number.

23220421044 is an abundant number, since it is smaller than the sum of its proper divisors (30987748524).

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

23220421044 is a wasteful number, since it uses less digits than its factorization.

23220421044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970975 (or 970973 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 23220421044 its reverse (44012402232), we get a palindrome (67232823276).

The spelling of 23220421044 in words is "twenty-three billion, two hundred twenty million, four hundred twenty-one thousand, forty-four".