20221201320220 has 24 divisors (see below), whose sum is σ = 42481735897104. Its totient is φ = 8085201837696.

The previous prime is 20221201320197. The next prime is 20221201320247. The reversal of 20221201320220 is 2202310212202.

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, 204867577 + ... + 204966256.

It is an arithmetic number, because the mean of its divisors is an integer number (1770072329046).

Almost surely, 2^{20221201320220} is an apocalyptic number.

20221201320220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221201320220 is an abundant number, since it is smaller than the sum of its proper divisors (22260534576884).

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

20221201320220 is a wasteful number, since it uses less digits than its factorization.

20221201320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409836309 (or 409836307 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20221201320220 its reverse (2202310212202), we get a palindrome (22423511532422).

The spelling of 20221201320220 in words is "twenty trillion, two hundred twenty-one billion, two hundred one million, three hundred twenty thousand, two hundred twenty".