202212100220 has 24 divisors (see below), whose sum is σ = 457310442624. Its totient is φ = 74662929216.

The previous prime is 202212100199. The next prime is 202212100241. The reversal of 202212100220 is 22001212202.

It is an interprime number because it is at equal distance from previous prime (202212100199) and next prime (202212100241).

It is a junction number, because it is equal to n+sod(n) for n = 202212100195 and 202212100204.

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, 388869164 + ... + 388869683.

It is an arithmetic number, because the mean of its divisors is an integer number (19054601776).

Almost surely, 2^202212100220 is an apocalyptic number.

202212100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202212100220 is an abundant number, since it is smaller than the sum of its proper divisors (255098342404).

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

202212100220 is a wasteful number, since it uses less digits than its factorization.

202212100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777738869 (or 777738867 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202212100220 its reverse (22001212202), we get a palindrome (224213312422).

The spelling of 202212100220 in words is "two hundred two billion, two hundred twelve million, one hundred thousand, two hundred twenty".