23202111220 has 48 divisors (see below), whose sum is σ = 49438384128. Its totient is φ = 9145094400.

The previous prime is 23202111209. The next prime is 23202111223. The reversal of 23202111220 is 2211120232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23202111194 and 23202111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23202111223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1673557 + ... + 1687363.

It is an arithmetic number, because the mean of its divisors is an integer number (1029966336).

Almost surely, 2^23202111220 is an apocalyptic number.

23202111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23202111220 is an abundant number, since it is smaller than the sum of its proper divisors (26236272908).

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

23202111220 is a wasteful number, since it uses less digits than its factorization.

23202111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15040 (or 15038 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23202111220 its reverse (2211120232), we get a palindrome (25413231452).

The spelling of 23202111220 in words is "twenty-three billion, two hundred two million, one hundred eleven thousand, two hundred twenty".