122661445100 has 18 divisors (see below), whose sum is σ = 266175336084. Its totient is φ = 49064578000.

The previous prime is 122661445099. The next prime is 122661445111. The reversal of 122661445100 is 1544166221.

It is a super-2 number, since 2×122661445100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613307126 + ... + 613307325.

Almost surely, 2^122661445100 is an apocalyptic number.

122661445100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122661445100 is an abundant number, since it is smaller than the sum of its proper divisors (143513890984).

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

122661445100 is a wasteful number, since it uses less digits than its factorization.

122661445100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226614465 (or 1226614458 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 122661445100 in words is "one hundred twenty-two billion, six hundred sixty-one million, four hundred forty-five thousand, one hundred".