122321211220 has 24 divisors (see below), whose sum is σ = 276634124424. Its totient is φ = 45164754816.

The previous prime is 122321211217. The next prime is 122321211251. The reversal of 122321211220 is 22112123221.

It can be written as a sum of positive squares in 4 ways, for example, as 26129429316 + 96191781904 = 161646^2 + 310148^2 .

It is a congruent number.

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, 235232839 + ... + 235233358.

It is an arithmetic number, because the mean of its divisors is an integer number (11526421851).

Almost surely, 2^122321211220 is an apocalyptic number.

122321211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122321211220 is an abundant number, since it is smaller than the sum of its proper divisors (154312913204).

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

122321211220 is a wasteful number, since it uses less digits than its factorization.

122321211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470466219 (or 470466217 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122321211220 its reverse (22112123221), we get a palindrome (144433334441).

The spelling of 122321211220 in words is "one hundred twenty-two billion, three hundred twenty-one million, two hundred eleven thousand, two hundred twenty".