1222442424025 has 12 divisors (see below), whose sum is σ = 1516134555052. Its totient is φ = 977756552640.

The previous prime is 1222442424023. The next prime is 1222442424029. The reversal of 1222442424025 is 5204242442221.

It can be written as a sum of positive squares in 6 ways, for example, as 111762507481 + 1110679916544 = 334309^2 + 1053888^2 .

It is not a de Polignac number, because 1222442424025 - 2¹ = 1222442424023 is a prime.

It is a super-2 number, since 2×1222442424025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222442424023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4808262 + ... + 5056111.

Almost surely, 2^{1222442424025} is an apocalyptic number.

It is an amenable number.

1222442424025 is a deficient number, since it is larger than the sum of its proper divisors (293692131027).

1222442424025 is an equidigital number, since it uses as much as digits as its factorization.

1222442424025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9869340 (or 9869335 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 1222442424025 its reverse (5204242442221), we get a palindrome (6426684866246).

The spelling of 1222442424025 in words is "one trillion, two hundred twenty-two billion, four hundred forty-two million, four hundred twenty-four thousand, twenty-five".