77211212122331 has 8 divisors (see below), whose sum is σ = 88244062042080. Its totient is φ = 66179031392448.

The previous prime is 77211212122273. The next prime is 77211212122357. The reversal of 77211212122331 is 13322121211277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77211212122331 - 2³⁸ = 76936334215387 is a prime.

It is a super-2 number, since 2×77211212122331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77211212122291 and 77211212122300.

It is not an unprimeable number, because it can be changed into a prime (77211212142331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167050196 + ... + 167511761.

It is an arithmetic number, because the mean of its divisors is an integer number (11030507755260).

Almost surely, 2^{77211212122331} is an apocalyptic number.

77211212122331 is a deficient number, since it is larger than the sum of its proper divisors (11032849919749).

77211212122331 is a wasteful number, since it uses less digits than its factorization.

77211212122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334594933.

The product of its digits is 14112, while the sum is 35.

The spelling of 77211212122331 in words is "seventy-seven trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-two thousand, three hundred thirty-one".