1522220515012 has 12 divisors (see below), whose sum is σ = 2820585072060. Its totient is φ = 716339065856.

The previous prime is 1522220515003. The next prime is 1522220515031. The reversal of 1522220515012 is 2105150222251.

It can be written as a sum of positive squares in 2 ways, for example, as 601207941376 + 921012573636 = 775376^2 + 959694^2 .

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, 11192797837 + ... + 11192797972.

It is an arithmetic number, because the mean of its divisors is an integer number (235048756005).

Almost surely, 2^{1522220515012} is an apocalyptic number.

It is an amenable number.

1522220515012 is a deficient number, since it is larger than the sum of its proper divisors (1298364557048).

1522220515012 is a wasteful number, since it uses less digits than its factorization.

1522220515012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22385595830 (or 22385595828 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 1522220515012 its reverse (2105150222251), we get a palindrome (3627370737263).

The spelling of 1522220515012 in words is "one trillion, five hundred twenty-two billion, two hundred twenty million, five hundred fifteen thousand, twelve".