2221211021179 has 2 divisors, whose sum is σ = 2221211021180. Its totient is φ = 2221211021178.

The previous prime is 2221211021173. The next prime is 2221211021231. The reversal of 2221211021179 is 9711201121222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221211021179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221211021179.

It is not a weakly prime, because it can be changed into another prime (2221211021173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110605510589 + 1110605510590.

It is an arithmetic number, because the mean of its divisors is an integer number (1110605510590).

Almost surely, 2^{2221211021179} is an apocalyptic number.

2221211021179 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221211021179 is an equidigital number, since it uses as much as digits as its factorization.

2221211021179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 2221211021179 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, twenty-one thousand, one hundred seventy-nine".