122821977776 has 20 divisors (see below), whose sum is σ = 238255355592. Its totient is φ = 61336724736.

The previous prime is 122821977769. The next prime is 122821977821. The reversal of 122821977776 is 677779128221.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

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, 4627865 + ... + 4654328.

Almost surely, 2^122821977776 is an apocalyptic number.

122821977776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122821977776 is a deficient number, since it is larger than the sum of its proper divisors (115433377816).

122821977776 is an equidigital number, since it uses as much as digits as its factorization.

122821977776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9283028 (or 9283022 counting only the distinct ones).

The product of its digits is 8297856, while the sum is 59.

The spelling of 122821977776 in words is "one hundred twenty-two billion, eight hundred twenty-one million, nine hundred seventy-seven thousand, seven hundred seventy-six".