121712001160 has 32 divisors (see below), whose sum is σ = 289960945560. Its totient is φ = 45820988416.

The previous prime is 121712001139. The next prime is 121712001179. The reversal of 121712001160 is 61100217121.

It can be written as a sum of positive squares in 4 ways, for example, as 114537572356 + 7174428804 = 338434^2 + 84702^2 .

It is a super-2 number, since 2×121712001160² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89493439 + ... + 89494798.

Almost surely, 2^121712001160 is an apocalyptic number.

121712001160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121712001160 is an abundant number, since it is smaller than the sum of its proper divisors (168248944400).

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

121712001160 is a wasteful number, since it uses less digits than its factorization.

121712001160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178988265 (or 178988261 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 121712001160 its reverse (61100217121), we get a palindrome (182812218281).

The spelling of 121712001160 in words is "one hundred twenty-one billion, seven hundred twelve million, one thousand, one hundred sixty".