121131022124 has 48 divisors (see below), whose sum is σ = 249394152000. Its totient is φ = 51453819648.

The previous prime is 121131022091. The next prime is 121131022157. The reversal of 121131022124 is 421220131121.

It is an interprime number because it is at equal distance from previous prime (121131022091) and next prime (121131022157).

It is a junction number, because it is equal to n+sod(n) for n = 121131022096 and 121131022105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235619 + ... + 545690.

It is an arithmetic number, because the mean of its divisors is an integer number (5195711500).

Almost surely, 2^121131022124 is an apocalyptic number.

121131022124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121131022124 is an abundant number, since it is smaller than the sum of its proper divisors (128263129876).

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

121131022124 is a wasteful number, since it uses less digits than its factorization.

121131022124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781447 (or 781431 counting only the distinct ones).

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

Adding to 121131022124 its reverse (421220131121), we get a palindrome (542351153245).

The spelling of 121131022124 in words is "one hundred twenty-one billion, one hundred thirty-one million, twenty-two thousand, one hundred twenty-four".