77822113122 has 64 divisors (see below), whose sum is σ = 188161128960. Its totient is φ = 23698386432.

The previous prime is 77822113097. The next prime is 77822113133. The reversal of 77822113122 is 22131122877.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503338 + ... + 639525.

It is an arithmetic number, because the mean of its divisors is an integer number (2940017640).

Almost surely, 2^77822113122 is an apocalyptic number.

77822113122 is an abundant number, since it is smaller than the sum of its proper divisors (110339015838).

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

77822113122 is a wasteful number, since it uses less digits than its factorization.

77822113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142984 (or 1142978 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

Adding to 77822113122 its reverse (22131122877), we get a palindrome (99953235999).

The spelling of 77822113122 in words is "seventy-seven billion, eight hundred twenty-two million, one hundred thirteen thousand, one hundred twenty-two".