122156051047 has 4 divisors (see below), whose sum is σ = 122229243880. Its totient is φ = 122082858216.

The previous prime is 122156050921. The next prime is 122156051057. The reversal of 122156051047 is 740150651221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122156051047 - 2¹⁵ = 122156018279 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 (122156051057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36593913 + ... + 36597250.

It is an arithmetic number, because the mean of its divisors is an integer number (30557310970).

Almost surely, 2^122156051047 is an apocalyptic number.

122156051047 is a deficient number, since it is larger than the sum of its proper divisors (73192833).

122156051047 is an equidigital number, since it uses as much as digits as its factorization.

122156051047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73192832.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 122156051047 in words is "one hundred twenty-two billion, one hundred fifty-six million, fifty-one thousand, forty-seven".