121110221010100 has 36 divisors (see below), whose sum is σ = 300353348106784. Its totient is φ = 41523504346080.

The previous prime is 121110221010089. The next prime is 121110221010137. The reversal of 121110221010100 is 1010122011121.

It is a happy number.

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, 86507300022 + ... + 86507301421.

Almost surely, 2^{121110221010100} is an apocalyptic number.

121110221010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121110221010100 is an abundant number, since it is smaller than the sum of its proper divisors (179243127096684).

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

121110221010100 is a wasteful number, since it uses less digits than its factorization.

121110221010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173014601464 (or 173014601457 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121110221010100 its reverse (1010122011121), we get a palindrome (122120343021221).

The spelling of 121110221010100 in words is "one hundred twenty-one trillion, one hundred ten billion, two hundred twenty-one million, ten thousand, one hundred".