20220012201220 has 24 divisors (see below), whose sum is σ = 45728335286424. Its totient is φ = 7465850658816.

The previous prime is 20220012201211. The next prime is 20220012201241. The reversal of 20220012201220 is 2210221002202.

It can be written as a sum of positive squares in 4 ways, for example, as 179294658624 + 20040717542596 = 423432^2 + 4476686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20220012201194 and 20220012201203.

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, 38884638589 + ... + 38884639108.

It is an arithmetic number, because the mean of its divisors is an integer number (1905347303601).

Almost surely, 2^{20220012201220} is an apocalyptic number.

20220012201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220012201220 is an abundant number, since it is smaller than the sum of its proper divisors (25508323085204).

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

20220012201220 is a wasteful number, since it uses less digits than its factorization.

20220012201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77769277719 (or 77769277717 counting only the distinct ones).

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

Adding to 20220012201220 its reverse (2210221002202), we get a palindrome (22430233203422).

The spelling of 20220012201220 in words is "twenty trillion, two hundred twenty billion, twelve million, two hundred one thousand, two hundred twenty".