20212010220 has 48 divisors (see below), whose sum is σ = 56615328000. Its totient is φ = 5387802816.

The previous prime is 20212010197. The next prime is 20212010233. The reversal of 20212010220 is 2201021202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20212010196 and 20212010205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96531 + ... + 223029.

It is an arithmetic number, because the mean of its divisors is an integer number (1179486000).

Almost surely, 2^20212010220 is an apocalyptic number.

20212010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212010220 is an abundant number, since it is smaller than the sum of its proper divisors (36403317780).

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

20212010220 is a wasteful number, since it uses less digits than its factorization.

20212010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129174 (or 129172 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20212010220 its reverse (2201021202), we get a palindrome (22413031422).

The spelling of 20212010220 in words is "twenty billion, two hundred twelve million, ten thousand, two hundred twenty".