2211220231189 has 2 divisors, whose sum is σ = 2211220231190. Its totient is φ = 2211220231188.

The previous prime is 2211220231169. The next prime is 2211220231229. The reversal of 2211220231189 is 9811320221122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194611838289 + 1016608392900 = 1092983^2 + 1008270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211220231189 - 2⁹ = 2211220230677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211220231169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105610115594 + 1105610115595.

It is an arithmetic number, because the mean of its divisors is an integer number (1105610115595).

Almost surely, 2^{2211220231189} is an apocalyptic number.

It is an amenable number.

2211220231189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211220231189 is an equidigital number, since it uses as much as digits as its factorization.

2211220231189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 2211220231189 in words is "two trillion, two hundred eleven billion, two hundred twenty million, two hundred thirty-one thousand, one hundred eighty-nine".