22157011 has 2 divisors, whose sum is σ = 22157012. Its totient is φ = 22157010.

The previous prime is 22156999. The next prime is 22157053. The reversal of 22157011 is 11075122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22157011 - 2¹¹ = 22154963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22157011.

It is not a weakly prime, because it can be changed into another prime (22157081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11078505 + 11078506.

It is an arithmetic number, because the mean of its divisors is an integer number (11078506).

Almost surely, 2^22157011 is an apocalyptic number.

22157011 is a deficient number, since it is larger than the sum of its proper divisors (1).

22157011 is an equidigital number, since it uses as much as digits as its factorization.

22157011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 22157011 is about 4707.1234315662. The cubic root of 22157011 is about 280.8689459505.

The spelling of 22157011 in words is "twenty-two million, one hundred fifty-seven thousand, eleven".