202022212122220 has 96 divisors (see below), whose sum is σ = 488662605043200. Its totient is φ = 68722320336384.

The previous prime is 202022212122209. The next prime is 202022212122253. The reversal of 202022212122220 is 22221212220202.

It is a junction number, because it is equal to n+sod(n) for n = 202022212122191 and 202022212122200.

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, 2002776 + ... + 20200384.

It is an arithmetic number, because the mean of its divisors is an integer number (5090235469200).

Almost surely, 2^{202022212122220} is an apocalyptic number.

202022212122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202022212122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244331302521600).

202022212122220 is an abundant number, since it is smaller than the sum of its proper divisors (286640392920980).

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

202022212122220 is a wasteful number, since it uses less digits than its factorization.

202022212122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18198247 (or 18198245 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 202022212122220 its reverse (22221212220202), we get a palindrome (224243424342422).

The spelling of 202022212122220 in words is "two hundred two trillion, twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred twenty".