1212412255444 has 12 divisors (see below), whose sum is σ = 2284930789204. Its totient is φ = 559574887104.

The previous prime is 1212412255427. The next prime is 1212412255459. The reversal of 1212412255444 is 4445522142121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62306150544 + 1150106104900 = 249612^2 + 1072430^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11657810097 + ... + 11657810200.

Almost surely, 2^{1212412255444} is an apocalyptic number.

It is an amenable number.

1212412255444 is a deficient number, since it is larger than the sum of its proper divisors (1072518533760).

1212412255444 is a wasteful number, since it uses less digits than its factorization.

1212412255444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23315620314 (or 23315620312 counting only the distinct ones).

The product of its digits is 102400, while the sum is 37.

Adding to 1212412255444 its reverse (4445522142121), we get a palindrome (5657934397565).

The spelling of 1212412255444 in words is "one trillion, two hundred twelve billion, four hundred twelve million, two hundred fifty-five thousand, four hundred forty-four".