122221772575 has 48 divisors (see below), whose sum is σ = 178893438976. Its totient is φ = 81060134400.

The previous prime is 122221772573. The next prime is 122221772581. The reversal of 122221772575 is 575277122221.

It is a happy number.

It is not a de Polignac number, because 122221772575 - 2¹ = 122221772573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221772573) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11620519 + ... + 11631031.

Almost surely, 2^122221772575 is an apocalyptic number.

122221772575 is a deficient number, since it is larger than the sum of its proper divisors (56671666401).

122221772575 is a wasteful number, since it uses less digits than its factorization.

122221772575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704 (or 12699 counting only the distinct ones).

The product of its digits is 274400, while the sum is 43.

Adding to 122221772575 its reverse (575277122221), we get a palindrome (697498894796).

The spelling of 122221772575 in words is "one hundred twenty-two billion, two hundred twenty-one million, seven hundred seventy-two thousand, five hundred seventy-five".