122442040100 has 36 divisors (see below), whose sum is σ = 279683401200. Its totient is φ = 46399088160.

The previous prime is 122442040027. The next prime is 122442040109. The reversal of 122442040100 is 1040244221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (122442040109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32219690 + ... + 32223489.

Almost surely, 2^122442040100 is an apocalyptic number.

122442040100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122442040100 is an abundant number, since it is smaller than the sum of its proper divisors (157241361100).

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

122442040100 is a wasteful number, since it uses less digits than its factorization.

122442040100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64443212 (or 64443205 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 122442040100 its reverse (1040244221), we get a palindrome (123482284321).

The spelling of 122442040100 in words is "one hundred twenty-two billion, four hundred forty-two million, forty thousand, one hundred".