122726290621 has 8 divisors (see below), whose sum is σ = 133898337504. Its totient is φ = 111556762320.

The previous prime is 122726290613. The next prime is 122726290651. The reversal of 122726290621 is 126092627221.

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 122726290621 - 2³ = 122726290613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122726290651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527026 + ... + 723331.

It is an arithmetic number, because the mean of its divisors is an integer number (16737292188).

Almost surely, 2^122726290621 is an apocalyptic number.

122726290621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122726290621 is a deficient number, since it is larger than the sum of its proper divisors (11172046883).

122726290621 is a wasteful number, since it uses less digits than its factorization.

122726290621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259291.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 122726290621 in words is "one hundred twenty-two billion, seven hundred twenty-six million, two hundred ninety thousand, six hundred twenty-one".