121166662100 has 36 divisors (see below), whose sum is σ = 286834537248. Its totient is φ = 44060604000.

The previous prime is 121166662073. The next prime is 121166662129. The reversal of 121166662100 is 1266661121.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55074656 + ... + 55076855.

Almost surely, 2^121166662100 is an apocalyptic number.

121166662100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121166662100 is an abundant number, since it is smaller than the sum of its proper divisors (165667875148).

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

121166662100 is a wasteful number, since it uses less digits than its factorization.

121166662100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110151536 (or 110151529 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 121166662100 in words is "one hundred twenty-one billion, one hundred sixty-six million, six hundred sixty-two thousand, one hundred".