202220212122 has 64 divisors (see below), whose sum is σ = 450550719360. Its totient is φ = 67231095552.

The previous prime is 202220212111. The next prime is 202220212147. The reversal of 202220212122 is 221212022202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202220212095 and 202220212104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47322978 + ... + 47327250.

It is an arithmetic number, because the mean of its divisors is an integer number (7039854990).

Almost surely, 2^202220212122 is an apocalyptic number.

202220212122 is an abundant number, since it is smaller than the sum of its proper divisors (248330507238).

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

202220212122 is a wasteful number, since it uses less digits than its factorization.

202220212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202220212122 its reverse (221212022202), we get a palindrome (423432234324).

The spelling of 202220212122 in words is "two hundred two billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty-two".