1212315121344 has 112 divisors (see below), whose sum is σ = 3321970430976.
Its totient is φ = 389936332800.
The previous prime is 1212315121333. The next prime is 1212315121357. The reversal of 1212315121344 is 4431215132121.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305377 + ... + 1586784.
Almost surely, 21212315121344 is an apocalyptic number.
It is an amenable number.
1212315121344 is an abundant number, since it is smaller than the sum of its proper divisors (2109655309632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1212315121344 is a wasteful number, since it uses less digits than its factorization.
1212315121344 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1892294 (or 1892284 counting only the distinct ones).
The product of its digits is 5760, while the sum is 30.
The spelling of 1212315121344 in words is "one trillion, two hundred twelve billion, three hundred fifteen million, one hundred twenty-one thousand, three hundred forty-four".