120612216559 has 4 divisors (see below), whose sum is σ = 120835160200. Its totient is φ = 120389272920.

The previous prime is 120612216541. The next prime is 120612216617. The reversal of 120612216559 is 955612216021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 955612216021 = 5591 ⋅170919731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120612216559 is a prime.

It is a super-2 number, since 2×120612216559² (a number of 23 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 (120612216059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111471009 + ... + 111472090.

It is an arithmetic number, because the mean of its divisors is an integer number (30208790050).

Almost surely, 2^120612216559 is an apocalyptic number.

120612216559 is a deficient number, since it is larger than the sum of its proper divisors (222943641).

120612216559 is an equidigital number, since it uses as much as digits as its factorization.

120612216559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222943640.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 120612216559 in words is "one hundred twenty billion, six hundred twelve million, two hundred sixteen thousand, five hundred fifty-nine".