1220897037519 has 8 divisors (see below), whose sum is σ = 1808736351920. Its totient is φ = 813931358328.

The previous prime is 1220897037499. The next prime is 1220897037541. The reversal of 1220897037519 is 9157307980221.

It is a happy number.

1220897037519 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 8 + 97 + 0 + 37 + 519 = 666.

It is not a de Polignac number, because 1220897037519 - 2²⁰ = 1220895988943 is a prime.

It is a super-2 number, since 2×1220897037519² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220897030519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22609204372 + ... + 22609204425.

It is an arithmetic number, because the mean of its divisors is an integer number (226092043990).

Almost surely, 2^{1220897037519} is an apocalyptic number.

1220897037519 is a deficient number, since it is larger than the sum of its proper divisors (587839314401).

1220897037519 is an equidigital number, since it uses as much as digits as its factorization.

1220897037519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45218408806 (or 45218408800 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 1220897037519 in words is "one trillion, two hundred twenty billion, eight hundred ninety-seven million, thirty-seven thousand, five hundred nineteen".