77102202112102 has 8 divisors (see below), whose sum is σ = 115663161979512. Its totient is φ = 38547814785600.

The previous prime is 77102202112093. The next prime is 77102202112141. The reversal of 77102202112102 is 20121120220177.

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

It is a super-2 number, since 2×77102202112102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643105899 + ... + 1643152822.

It is an arithmetic number, because the mean of its divisors is an integer number (14457895247439).

Almost surely, 2^{77102202112102} is an apocalyptic number.

77102202112102 is a deficient number, since it is larger than the sum of its proper divisors (38560959867410).

77102202112102 is a wasteful number, since it uses less digits than its factorization.

77102202112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286270454.

The product of its (nonzero) digits is 1568, while the sum is 28.

Adding to 77102202112102 its reverse (20121120220177), we get a palindrome (97223322332279).

The spelling of 77102202112102 in words is "seventy-seven trillion, one hundred two billion, two hundred two million, one hundred twelve thousand, one hundred two".