2212144391 has 2 divisors, whose sum is σ = 2212144392. Its totient is φ = 2212144390.

The previous prime is 2212144379. The next prime is 2212144411. The reversal of 2212144391 is 1934412122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2212144391 - 2⁶ = 2212144327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212144591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106072195 + 1106072196.

It is an arithmetic number, because the mean of its divisors is an integer number (1106072196).

Almost surely, 2^2212144391 is an apocalyptic number.

2212144391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212144391 is an equidigital number, since it uses as much as digits as its factorization.

2212144391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 2212144391 is about 47033.4390726428. The cubic root of 2212144391 is about 1302.9802220530.

The spelling of 2212144391 in words is "two billion, two hundred twelve million, one hundred forty-four thousand, three hundred ninety-one".