121122212230100 has 36 divisors (see below), whose sum is σ = 263357735838624. Its totient is φ = 48352565021280.

The previous prime is 121122212230079. The next prime is 121122212230121. The reversal of 121122212230100 is 1032212221121.

It is an interprime number because it is at equal distance from previous prime (121122212230079) and next prime (121122212230121).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1203947834 + ... + 1204048433.

It is an arithmetic number, because the mean of its divisors is an integer number (7315492662184).

Almost surely, 2^{121122212230100} is an apocalyptic number.

121122212230100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122212230100 is an abundant number, since it is smaller than the sum of its proper divisors (142235523608524).

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

121122212230100 is a wasteful number, since it uses less digits than its factorization.

121122212230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407996784 (or 2407996777 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121122212230100 its reverse (1032212221121), we get a palindrome (122154424451221).

The spelling of 121122212230100 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred thirty thousand, one hundred".