1201257206412 has 24 divisors (see below), whose sum is σ = 2844768311616. Its totient is φ = 394442664528.

The previous prime is 1201257206389. The next prime is 1201257206431. The reversal of 1201257206412 is 2146027521021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747049698 + ... + 747051305.

It is an arithmetic number, because the mean of its divisors is an integer number (118532012984).

Almost surely, 2^{1201257206412} is an apocalyptic number.

1201257206412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201257206412 is an abundant number, since it is smaller than the sum of its proper divisors (1643511105204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201257206412 is a wasteful number, since it uses less digits than its factorization.

1201257206412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494101077 (or 1494101075 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 1201257206412 in words is "one trillion, two hundred one billion, two hundred fifty-seven million, two hundred six thousand, four hundred twelve".