121322300100 has 36 divisors (see below), whose sum is σ = 351025855824. Its totient is φ = 32352613280.

The previous prime is 121322300093. The next prime is 121322300107. The reversal of 121322300100 is 1003223121.

It is an interprime number because it is at equal distance from previous prime (121322300093) and next prime (121322300107).

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 121322300100.

It is not an unprimeable number, because it can be changed into a prime (121322300107) 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, 202203534 + ... + 202204133.

Almost surely, 2^121322300100 is an apocalyptic number.

121322300100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121322300100 is an abundant number, since it is smaller than the sum of its proper divisors (229703555724).

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

121322300100 is a wasteful number, since it uses less digits than its factorization.

121322300100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404407684 (or 404407677 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121322300100 its reverse (1003223121), we get a palindrome (122325523221).

The spelling of 121322300100 in words is "one hundred twenty-one billion, three hundred twenty-two million, three hundred thousand, one hundred".