2226906691 has 2 divisors, whose sum is σ = 2226906692. Its totient is φ = 2226906690.

The previous prime is 2226906673. The next prime is 2226906719. The reversal of 2226906691 is 1966096222.

2226906691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2226906691 - 2²⁹ = 1690035779 is a prime.

It is a super-2 number, since 2×2226906691² = 9918226820841138962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2226906611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113453345 + 1113453346.

It is an arithmetic number, because the mean of its divisors is an integer number (1113453346).

Almost surely, 2^2226906691 is an apocalyptic number.

2226906691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2226906691 is an equidigital number, since it uses as much as digits as its factorization.

2226906691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 2226906691 is about 47190.1122164379. The cubic root of 2226906691 is about 1305.8721905887.

The spelling of 2226906691 in words is "two billion, two hundred twenty-six million, nine hundred six thousand, six hundred ninety-one".