121101101122200 has 96 divisors (see below), whose sum is σ = 375449333610960. Its totient is φ = 32290537062400.

The previous prime is 121101101122139. The next prime is 121101101122229. The reversal of 121101101122200 is 2221101101121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121101101122200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3376521 + ... + 15924920.

Almost surely, 2^{121101101122200} is an apocalyptic number.

121101101122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101101122200 is an abundant number, since it is smaller than the sum of its proper divisors (254348232488760).

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

121101101122200 is a wasteful number, since it uses less digits than its factorization.

121101101122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19311917 (or 19311908 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121101101122200 its reverse (2221101101121), we get a palindrome (123322202223321).

The spelling of 121101101122200 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred one million, one hundred twenty-two thousand, two hundred".