122321022100 has 18 divisors (see below), whose sum is σ = 265436618174. Its totient is φ = 48928408800.

The previous prime is 122321022059. The next prime is 122321022101. The reversal of 122321022100 is 1220123221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 137217796 + 122183804304 = 11714^2 + 349548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122321022101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611605011 + ... + 611605210.

Almost surely, 2^122321022100 is an apocalyptic number.

122321022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122321022100 is an abundant number, since it is smaller than the sum of its proper divisors (143115596074).

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

122321022100 is a wasteful number, since it uses less digits than its factorization.

122321022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223210235 (or 1223210228 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 122321022100 its reverse (1220123221), we get a palindrome (123541145321).

The spelling of 122321022100 in words is "one hundred twenty-two billion, three hundred twenty-one million, twenty-two thousand, one hundred".