122677021456 has 60 divisors (see below), whose sum is σ = 260282372112. Its totient is φ = 55550664000.

The previous prime is 122677021447. The next prime is 122677021459. The reversal of 122677021456 is 654120776221.

It is not an unprimeable number, because it can be changed into a prime (122677021459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12920871 + ... + 12930361.

Almost surely, 2^122677021456 is an apocalyptic number.

122677021456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122677021456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130141186056).

122677021456 is an abundant number, since it is smaller than the sum of its proper divisors (137605350656).

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

122677021456 is an equidigital number, since it uses as much as digits as its factorization.

122677021456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052 (or 9775 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

Adding to 122677021456 its reverse (654120776221), we get a palindrome (776797797677).

The spelling of 122677021456 in words is "one hundred twenty-two billion, six hundred seventy-seven million, twenty-one thousand, four hundred fifty-six".