220231002220 has 24 divisors (see below), whose sum is σ = 486826426800. Its totient is φ = 83455958592.

The previous prime is 220231002217. The next prime is 220231002223. The reversal of 220231002220 is 22200132022.

It is an interprime number because it is at equal distance from previous prime (220231002217) and next prime (220231002223).

It is a junction number, because it is equal to n+sod(n) for n = 220231002194 and 220231002203.

It is not an unprimeable number, because it can be changed into a prime (220231002223) 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, 289777255 + ... + 289778014.

It is an arithmetic number, because the mean of its divisors is an integer number (20284434450).

Almost surely, 2^220231002220 is an apocalyptic number.

220231002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220231002220 is an abundant number, since it is smaller than the sum of its proper divisors (266595424580).

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

220231002220 is a wasteful number, since it uses less digits than its factorization.

220231002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579555297 (or 579555295 counting only the distinct ones).

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

Adding to 220231002220 its reverse (22200132022), we get a palindrome (242431134242).

The spelling of 220231002220 in words is "two hundred twenty billion, two hundred thirty-one million, two thousand, two hundred twenty".