22142322025 has 12 divisors (see below), whose sum is σ = 27574325532. Its totient is φ = 17637827840.

The previous prime is 22142321989. The next prime is 22142322053. The reversal of 22142322025 is 52022324122.

It can be written as a sum of positive squares in 6 ways, for example, as 6263297881 + 15879024144 = 79141^2 + 126012^2 .

It is not a de Polignac number, because 22142322025 - 2²³ = 22133933417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1894804 + ... + 1906453.

It is an arithmetic number, because the mean of its divisors is an integer number (2297860461).

Almost surely, 2^22142322025 is an apocalyptic number.

22142322025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22142322025 is a deficient number, since it is larger than the sum of its proper divisors (5432003507).

22142322025 is a wasteful number, since it uses less digits than its factorization.

22142322025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801500 (or 3801495 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 22142322025 its reverse (52022324122), we get a palindrome (74164646147).

The spelling of 22142322025 in words is "twenty-two billion, one hundred forty-two million, three hundred twenty-two thousand, twenty-five".