1221505014325 has 24 divisors (see below), whose sum is σ = 1523592725888. Its totient is φ = 971452154880.

The previous prime is 1221505014263. The next prime is 1221505014347. The reversal of 1221505014325 is 5234105051221.

It is not a de Polignac number, because 1221505014325 - 2²⁹ = 1220968143413 is a prime.

It is a super-2 number, since 2×1221505014325² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6777022 + ... + 6954928.

Almost surely, 2^{1221505014325} is an apocalyptic number.

It is an amenable number.

1221505014325 is a deficient number, since it is larger than the sum of its proper divisors (302087711563).

1221505014325 is a wasteful number, since it uses less digits than its factorization.

1221505014325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179533 (or 179528 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 1221505014325 in words is "one trillion, two hundred twenty-one billion, five hundred five million, fourteen thousand, three hundred twenty-five".