121021022124 has 36 divisors (see below), whose sum is σ = 306430180056. Its totient is φ = 40272306048.

The previous prime is 121021022107. The next prime is 121021022131. The reversal of 121021022124 is 421220120121.

121021022124 is a `hidden beast` number, since 1 + 210 + 210 + 221 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121021022097 and 121021022106.

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, 2813134 + ... + 2855829.

It is an arithmetic number, because the mean of its divisors is an integer number (8511949446).

Almost surely, 2^121021022124 is an apocalyptic number.

It is an amenable number.

121021022124 is an abundant number, since it is smaller than the sum of its proper divisors (185409157932).

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

121021022124 is a wasteful number, since it uses less digits than its factorization.

121021022124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669566 (or 5669561 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121021022124 its reverse (421220120121), we get a palindrome (542241142245).

The spelling of 121021022124 in words is "one hundred twenty-one billion, twenty-one million, twenty-two thousand, one hundred twenty-four".