121221132230313 has 12 divisors (see below), whose sum is σ = 175365333719940. Its totient is φ = 80690329974816.

The previous prime is 121221132230251. The next prime is 121221132230323. The reversal of 121221132230313 is 313032231122121.

121221132230313 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 2 + 113 + 2 + 230 + 313 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41376953330064 + 79844178900249 = 6432492^2 + 8935557^2 .

It is not a de Polignac number, because 121221132230313 - 2²⁸ = 121220863794857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121221132230323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10313175358 + ... + 10313187111.

It is an arithmetic number, because the mean of its divisors is an integer number (14613777809995).

Almost surely, 2^{121221132230313} is an apocalyptic number.

It is an amenable number.

121221132230313 is a deficient number, since it is larger than the sum of its proper divisors (54144201489627).

121221132230313 is a wasteful number, since it uses less digits than its factorization.

121221132230313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20626363128 (or 20626363125 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 121221132230313 its reverse (313032231122121), we get a palindrome (434253363352434).

The spelling of 121221132230313 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred thirty-two million, two hundred thirty thousand, three hundred thirteen".