121455022263100 has 72 divisors (see below), whose sum is σ = 279144564573168. Its totient is φ = 45710514662400.

The previous prime is 121455022263061. The next prime is 121455022263103. The reversal of 121455022263100 is 1362220554121.

It is a happy number.

It is a super-2 number, since 2×121455022263100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121455022263103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5061427 + ... + 16386826.

It is an arithmetic number, because the mean of its divisors is an integer number (3877007841294).

Almost surely, 2^{121455022263100} is an apocalyptic number.

121455022263100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121455022263100 is an abundant number, since it is smaller than the sum of its proper divisors (157689542310068).

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

121455022263100 is a wasteful number, since it uses less digits than its factorization.

121455022263100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21451615 (or 21451608 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 121455022263100 in words is "one hundred twenty-one trillion, four hundred fifty-five billion, twenty-two million, two hundred sixty-three thousand, one hundred".