122220202022220 has 96 divisors (see below), whose sum is σ = 349557672038400. Its totient is φ = 31893138595584.

The previous prime is 122220202022209. The next prime is 122220202022251. The reversal of 122220202022220 is 22220202022221.

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, 12754686 + ... + 20177274.

It is an arithmetic number, because the mean of its divisors is an integer number (3641225750400).

Almost surely, 2^{122220202022220} is an apocalyptic number.

122220202022220 is a gapful number since it is divisible by the number (10) 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 122220202022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174778836019200).

122220202022220 is an abundant number, since it is smaller than the sum of its proper divisors (227337470016180).

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

122220202022220 is a wasteful number, since it uses less digits than its factorization.

122220202022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7428487 (or 7428485 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 122220202022220 its reverse (22220202022221), we get a palindrome (144440404044441).

Subtracting from 122220202022220 its reverse (22220202022221), we obtain a palindrome (99999999999999).

The spelling of 122220202022220 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred two million, twenty-two thousand, two hundred twenty".