23002221220 has 24 divisors (see below), whose sum is σ = 52695998208. Its totient is φ = 8364444000.

The previous prime is 23002221181. The next prime is 23002221227. The reversal of 23002221220 is 2212220032.

It is a junction number, because it is equal to n+sod(n) for n = 23002221194 and 23002221203.

It is not an unprimeable number, because it can be changed into a prime (23002221227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52277556 + ... + 52277995.

It is an arithmetic number, because the mean of its divisors is an integer number (2195666592).

Almost surely, 2^23002221220 is an apocalyptic number.

23002221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23002221220 is an abundant number, since it is smaller than the sum of its proper divisors (29693776988).

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

23002221220 is a wasteful number, since it uses less digits than its factorization.

23002221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104555571 (or 104555569 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 23002221220 its reverse (2212220032), we get a palindrome (25214441252).

The spelling of 23002221220 in words is "twenty-three billion, two million, two hundred twenty-one thousand, two hundred twenty".