121012210152 has 48 divisors (see below), whose sum is σ = 327785796000. Its totient is φ = 40331939616.

The previous prime is 121012210141. The next prime is 121012210183. The reversal of 121012210152 is 251012210121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439999 + ... + 660017.

It is an arithmetic number, because the mean of its divisors is an integer number (6828870750).

Almost surely, 2^121012210152 is an apocalyptic number.

121012210152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121012210152 is an abundant number, since it is smaller than the sum of its proper divisors (206773585848).

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

121012210152 is a wasteful number, since it uses less digits than its factorization.

121012210152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227670 (or 227663 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 121012210152 its reverse (251012210121), we get a palindrome (372024420273).

The spelling of 121012210152 in words is "one hundred twenty-one billion, twelve million, two hundred ten thousand, one hundred fifty-two".