122021427157 has 8 divisors (see below), whose sum is σ = 139554050432. Its totient is φ = 104514051600.

The previous prime is 122021427149. The next prime is 122021427161. The reversal of 122021427157 is 751724120221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122021427157 - 2³ = 122021427149 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 (122021427107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6301569 + ... + 6320902.

It is an arithmetic number, because the mean of its divisors is an integer number (17444256304).

Almost surely, 2^122021427157 is an apocalyptic number.

It is an amenable number.

122021427157 is a deficient number, since it is larger than the sum of its proper divisors (17532623275).

122021427157 is a wasteful number, since it uses less digits than its factorization.

122021427157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12623859.

The product of its (nonzero) digits is 15680, while the sum is 34.

Adding to 122021427157 its reverse (751724120221), we get a palindrome (873745547378).

The spelling of 122021427157 in words is "one hundred twenty-two billion, twenty-one million, four hundred twenty-seven thousand, one hundred fifty-seven".