1220515022215 has 16 divisors (see below), whose sum is σ = 1496343270240. Its totient is φ = 955488061440.

The previous prime is 1220515022203. The next prime is 1220515022227. The reversal of 1220515022215 is 5122205150221.

It is an interprime number because it is at equal distance from previous prime (1220515022203) and next prime (1220515022227).

It is not a de Polignac number, because 1220515022215 - 2²⁵ = 1220481467783 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14094621 + ... + 14180950.

It is an arithmetic number, because the mean of its divisors is an integer number (93521454390).

Almost surely, 2^{1220515022215} is an apocalyptic number.

1220515022215 is a deficient number, since it is larger than the sum of its proper divisors (275828248025).

1220515022215 is an equidigital number, since it uses as much as digits as its factorization.

1220515022215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28275762.

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

The spelling of 1220515022215 in words is "one trillion, two hundred twenty billion, five hundred fifteen million, twenty-two thousand, two hundred fifteen".