122025250251 has 20 divisors (see below), whose sum is σ = 182294026200. Its totient is φ = 81345974976.

The previous prime is 122025250219. The next prime is 122025250261. The reversal of 122025250251 is 152052520221.

It is a happy number.

It is not a de Polignac number, because 122025250251 - 2⁵ = 122025250219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (122025250261) 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 19 ways as a sum of consecutive naturals, for example, 3107820 + ... + 3146838.

It is an arithmetic number, because the mean of its divisors is an integer number (9114701310).

Almost surely, 2^122025250251 is an apocalyptic number.

122025250251 is a deficient number, since it is larger than the sum of its proper divisors (60268775949).

122025250251 is an equidigital number, since it uses as much as digits as its factorization.

122025250251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77640 (or 77631 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 122025250251 its reverse (152052520221), we get a palindrome (274077770472).

The spelling of 122025250251 in words is "one hundred twenty-two billion, twenty-five million, two hundred fifty thousand, two hundred fifty-one".