220221012020 has 48 divisors (see below), whose sum is σ = 487678786560. Its totient is φ = 83302268544.

The previous prime is 220221012019. The next prime is 220221012023. The reversal of 220221012020 is 20210122022.

It is a super-2 number, since 2×220221012020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220221011986 and 220221012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221012023) 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, 308564 + ... + 731883.

It is an arithmetic number, because the mean of its divisors is an integer number (10159974720).

Almost surely, 2^220221012020 is an apocalyptic number.

220221012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221012020 is an abundant number, since it is smaller than the sum of its proper divisors (267457774540).

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

220221012020 is a wasteful number, since it uses less digits than its factorization.

220221012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041032 (or 1041030 counting only the distinct ones).

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

Adding to 220221012020 its reverse (20210122022), we get a palindrome (240431134042).

The spelling of 220221012020 in words is "two hundred twenty billion, two hundred twenty-one million, twelve thousand, twenty".