121012892 has 48 divisors (see below), whose sum is σ = 284347392. Its totient is φ = 43519680.

The previous prime is 121012891. The next prime is 121012901. The reversal of 121012892 is 298210121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11108 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (5923904).

Almost surely, 2^121012892 is an apocalyptic number.

It is an amenable number.

121012892 is an abundant number, since it is smaller than the sum of its proper divisors (163334500).

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

121012892 is a wasteful number, since it uses less digits than its factorization.

121012892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30258 (or 30256 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 121012892 is about 11000.5859843919. The cubic root of 121012892 is about 494.6263098055.

The spelling of 121012892 in words is "one hundred twenty-one million, twelve thousand, eight hundred ninety-two".