220212100202020 has 48 divisors (see below), whose sum is σ = 490811141521008. Its totient is φ = 82706458705920.

The previous prime is 220212100201939. The next prime is 220212100202023. The reversal of 220212100202020 is 20202001212022.

It can be written as a sum of positive squares in 8 ways, for example, as 40125738222144 + 180086361979876 = 6334488^2 + 13419626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220212100201985 and 220212100202003.

It is not an unprimeable number, because it can be changed into a prime (220212100202023) 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, 769076157 + ... + 769362436.

It is an arithmetic number, because the mean of its divisors is an integer number (10225232115021).

Almost surely, 2^{220212100202020} is an apocalyptic number.

220212100202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220212100202020 is an abundant number, since it is smaller than the sum of its proper divisors (270599041318988).

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

220212100202020 is a wasteful number, since it uses less digits than its factorization.

220212100202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538439040 (or 1538439038 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220212100202020 its reverse (20202001212022), we get a palindrome (240414101414042).

The spelling of 220212100202020 in words is "two hundred twenty trillion, two hundred twelve billion, one hundred million, two hundred two thousand, twenty".