1220212111319 has 4 divisors (see below), whose sum is σ = 1220225667240. Its totient is φ = 1220198555400.

The previous prime is 1220212111303. The next prime is 1220212111409. The reversal of 1220212111319 is 9131112120221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220212111319 - 2⁴ = 1220212111303 is a prime.

It is a super-2 number, since 2×1220212111319² (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 (1220212111519) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6642032 + ... + 6823269.

It is an arithmetic number, because the mean of its divisors is an integer number (305056416810).

Almost surely, 2^{1220212111319} is an apocalyptic number.

1220212111319 is a deficient number, since it is larger than the sum of its proper divisors (13555921).

1220212111319 is an equidigital number, since it uses as much as digits as its factorization.

1220212111319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13555920.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 1220212111319 in words is "one trillion, two hundred twenty billion, two hundred twelve million, one hundred eleven thousand, three hundred nineteen".