122444566890 has 32 divisors (see below), whose sum is σ = 293876211456. Its totient is φ = 32650856640.

The previous prime is 122444566879. The next prime is 122444566927. The reversal of 122444566890 is 98665444221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1689295 + ... + 1760285.

It is an arithmetic number, because the mean of its divisors is an integer number (9183631608).

Almost surely, 2^122444566890 is an apocalyptic number.

122444566890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122444566890 is an abundant number, since it is smaller than the sum of its proper divisors (171431644566).

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

122444566890 is a wasteful number, since it uses less digits than its factorization.

122444566890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128494.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 122444566890 in words is "one hundred twenty-two billion, four hundred forty-four million, five hundred sixty-six thousand, eight hundred ninety".