202122211122220 has 24 divisors (see below), whose sum is σ = 424459447673184. Its totient is φ = 80848350293376.

The previous prime is 202122211122217. The next prime is 202122211122233. The reversal of 202122211122220 is 22221112221202.

It is a junction number, because it is equal to n+sod(n) for n = 202122211122191 and 202122211122200.

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, 30274809 + ... + 36342928.

It is an arithmetic number, because the mean of its divisors is an integer number (17685810319716).

Almost surely, 2^{202122211122220} is an apocalyptic number.

202122211122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202122211122220 is an abundant number, since it is smaller than the sum of its proper divisors (222337236550964).

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

202122211122220 is a wasteful number, since it uses less digits than its factorization.

202122211122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66769449 (or 66769447 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 202122211122220 its reverse (22221112221202), we get a palindrome (224343323343422).

The spelling of 202122211122220 in words is "two hundred two trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twenty".