1245440224402 has 16 divisors (see below), whose sum is σ = 2126601490752. Its totient is φ = 541495749520.

The previous prime is 1245440224393. The next prime is 1245440224403. The reversal of 1245440224402 is 2044220445421.

It is a super-2 number, since 2×1245440224402² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1245440224403) 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, 1230671653 + ... + 1230672664.

It is an arithmetic number, because the mean of its divisors is an integer number (132912593172).

Almost surely, 2^{1245440224402} is an apocalyptic number.

1245440224402 is a deficient number, since it is larger than the sum of its proper divisors (881161266350).

1245440224402 is a wasteful number, since it uses less digits than its factorization.

1245440224402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461344353.

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

Adding to 1245440224402 its reverse (2044220445421), we get a palindrome (3289660669823).

The spelling of 1245440224402 in words is "one trillion, two hundred forty-five billion, four hundred forty million, two hundred twenty-four thousand, four hundred two".