12121007371077 has 24 divisors (see below), whose sum is σ = 17802488674432. Its totient is φ = 7330198740480.

The previous prime is 12121007371037. The next prime is 12121007371103. The reversal of 12121007371077 is 77017370012121.

It is a de Polignac number, because none of the positive numbers 2^k-12121007371077 is a prime.

It is a super-2 number, since 2×12121007371077² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121007371027) 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 23 ways as a sum of consecutive naturals, for example, 35891548 + ... + 36227685.

Almost surely, 2^{12121007371077} is an apocalyptic number.

It is an amenable number.

12121007371077 is a deficient number, since it is larger than the sum of its proper divisors (5681481303355).

12121007371077 is a wasteful number, since it uses less digits than its factorization.

12121007371077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72119721 (or 72119710 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 39.

Adding to 12121007371077 its reverse (77017370012121), we get a palindrome (89138377383198).

The spelling of 12121007371077 in words is "twelve trillion, one hundred twenty-one billion, seven million, three hundred seventy-one thousand, seventy-seven".