121052150556 has 24 divisors (see below), whose sum is σ = 289023740544. Its totient is φ = 39412327920.

The previous prime is 121052150551. The next prime is 121052150567. The reversal of 121052150556 is 655051250121.

It is a super-2 number, since 2×121052150556² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121052150551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 117298080 + ... + 117299111.

It is an arithmetic number, because the mean of its divisors is an integer number (12042655856).

Almost surely, 2^121052150556 is an apocalyptic number.

It is an amenable number.

121052150556 is an abundant number, since it is smaller than the sum of its proper divisors (167971589988).

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

121052150556 is a wasteful number, since it uses less digits than its factorization.

121052150556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234597241 (or 234597239 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 121052150556 in words is "one hundred twenty-one billion, fifty-two million, one hundred fifty thousand, five hundred fifty-six".