122212122020 has 24 divisors (see below), whose sum is σ = 256690807800. Its totient is φ = 48876210432.

The previous prime is 122212121981. The next prime is 122212122047. The reversal of 122212122020 is 20221212221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42133309696 + 80078812324 = 205264^2 + 282982^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122212122020.

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, 423275 + ... + 650834.

It is an arithmetic number, because the mean of its divisors is an integer number (10695450325).

Almost surely, 2^122212122020 is an apocalyptic number.

122212122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212122020 is an abundant number, since it is smaller than the sum of its proper divisors (134478685780).

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

122212122020 is a wasteful number, since it uses less digits than its factorization.

122212122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079807 (or 1079805 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122212122020 its reverse (20221212221), we get a palindrome (142433334241).

The spelling of 122212122020 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, twenty".