1220221102319 has 2 divisors, whose sum is σ = 1220221102320. Its totient is φ = 1220221102318.

The previous prime is 1220221102201. The next prime is 1220221102409. The reversal of 1220221102319 is 9132011220221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220221102319 - 2²⁰ = 1220220053743 is a prime.

It is a super-2 number, since 2×1220221102319² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220221102019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610110551159 + 610110551160.

It is an arithmetic number, because the mean of its divisors is an integer number (610110551160).

Almost surely, 2^{1220221102319} is an apocalyptic number.

1220221102319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220221102319 is an equidigital number, since it uses as much as digits as its factorization.

1220221102319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1220221102319 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, one hundred two thousand, three hundred nineteen".