1204220402512 has 10 divisors (see below), whose sum is σ = 2333177029898. Its totient is φ = 602110201248.

The previous prime is 1204220402491. The next prime is 1204220402533. The reversal of 1204220402512 is 2152040224021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1204220402491) and next prime (1204220402533).

It can be written as a sum of positive squares in only one way, i.e., 810007200016 + 394213202496 = 900004^2 + 627864^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37631887563 + ... + 37631887594.

Almost surely, 2^{1204220402512} is an apocalyptic number.

It is an amenable number.

1204220402512 is a deficient number, since it is larger than the sum of its proper divisors (1128956627386).

1204220402512 is an equidigital number, since it uses as much as digits as its factorization.

1204220402512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75263775165 (or 75263775159 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 1204220402512 its reverse (2152040224021), we get a palindrome (3356260626533).

It can be divided in two parts, 1204 and 220402512, that added together give a square (220403716 = 14846²).

The spelling of 1204220402512 in words is "one trillion, two hundred four billion, two hundred twenty million, four hundred two thousand, five hundred twelve".