220202100020 has 24 divisors (see below), whose sum is σ = 528485040384. Its totient is φ = 75497862816.

The previous prime is 220202100017. The next prime is 220202100031. The reversal of 220202100020 is 20001202022.

It is a junction number, because it is equal to n+sod(n) for n = 220202099974 and 220202100010.

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, 786435932 + ... + 786436211.

It is an arithmetic number, because the mean of its divisors is an integer number (22020210016).

Almost surely, 2^220202100020 is an apocalyptic number.

220202100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202100020 is an abundant number, since it is smaller than the sum of its proper divisors (308282940364).

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

220202100020 is a wasteful number, since it uses less digits than its factorization.

220202100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572872159 (or 1572872157 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 220202100020 its reverse (20001202022), we get a palindrome (240203302042).

The spelling of 220202100020 in words is "two hundred twenty billion, two hundred two million, one hundred thousand, twenty".