122222020 has 24 divisors (see below), whose sum is σ = 257554584. Its totient is φ = 48719616.

The previous prime is 122222017. The next prime is 122222053. The reversal of 122222020 is 20222221.

It can be written as a sum of positive squares in 4 ways, for example, as 76632516 + 45589504 = 8754^2 + 6752^2 .

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, 4569 + ... + 16288.

It is an arithmetic number, because the mean of its divisors is an integer number (10731441).

Almost surely, 2^122222020 is an apocalyptic number.

122222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122222020 is an abundant number, since it is smaller than the sum of its proper divisors (135332564).

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

122222020 is a wasteful number, since it uses less digits than its factorization.

122222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21159 (or 21157 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 122222020 is about 11055.4068220034. The cubic root of 122222020 is about 496.2682439515.

Adding to 122222020 its reverse (20222221), we get a palindrome (142444241).

The spelling of 122222020 in words is "one hundred twenty-two million, two hundred twenty-two thousand, twenty".