1244027421212 has 6 divisors (see below), whose sum is σ = 2177047987128. Its totient is φ = 622013710604.

The previous prime is 1244027421193. The next prime is 1244027421277. The reversal of 1244027421212 is 2121247204421.

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, 155503427648 + ... + 155503427655.

It is an arithmetic number, because the mean of its divisors is an integer number (362841331188).

Almost surely, 2^{1244027421212} is an apocalyptic number.

It is an amenable number.

1244027421212 is a deficient number, since it is larger than the sum of its proper divisors (933020565916).

1244027421212 is a wasteful number, since it uses less digits than its factorization.

1244027421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311006855307 (or 311006855305 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The spelling of 1244027421212 in words is "one trillion, two hundred forty-four billion, twenty-seven million, four hundred twenty-one thousand, two hundred twelve".