12777756212000 has 96 divisors (see below), whose sum is σ = 33809943074544. Its totient is φ = 4717940736000.

The previous prime is 12777756211993. The next prime is 12777756212003. The reversal of 12777756212000 is 21265777721.

It can be written as a sum of positive squares in 8 ways, for example, as 23801084176 + 12753955127824 = 154276^2 + 3571268^2 .

It is not an unprimeable number, because it can be changed into a prime (12777756212003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122811041 + ... + 122915040.

Almost surely, 2^{12777756212000} is an apocalyptic number.

12777756212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12777756212000 is an abundant number, since it is smaller than the sum of its proper divisors (21032186862544).

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

12777756212000 is a wasteful number, since it uses less digits than its factorization.

12777756212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245726119 (or 245726101 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 47.

The spelling of 12777756212000 in words is "twelve trillion, seven hundred seventy-seven billion, seven hundred fifty-six million, two hundred twelve thousand".