122640436001 has 4 divisors (see below), whose sum is σ = 122641331904. Its totient is φ = 122639540100.

The previous prime is 122640435977. The next prime is 122640436021. The reversal of 122640436001 is 100634046221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 122640436001 - 2⁶ = 122640435937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122640436021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195005 + ... + 532266.

It is an arithmetic number, because the mean of its divisors is an integer number (30660332976).

Almost surely, 2^122640436001 is an apocalyptic number.

It is an amenable number.

122640436001 is a deficient number, since it is larger than the sum of its proper divisors (895903).

122640436001 is an equidigital number, since it uses as much as digits as its factorization.

122640436001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895902.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 122640436001 in words is "one hundred twenty-two billion, six hundred forty million, four hundred thirty-six thousand, one".