22151023 has 2 divisors, whose sum is σ = 22151024. Its totient is φ = 22151022.

The previous prime is 22151011. The next prime is 22151027. The reversal of 22151023 is 32015122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22151023 - 2⁹ = 22150511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22150988 and 22151006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22151027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11075511 + 11075512.

It is an arithmetic number, because the mean of its divisors is an integer number (11075512).

Almost surely, 2^22151023 is an apocalyptic number.

22151023 is a deficient number, since it is larger than the sum of its proper divisors (1).

22151023 is an equidigital number, since it uses as much as digits as its factorization.

22151023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 22151023 is about 4706.4873313332. The cubic root of 22151023 is about 280.8436417736.

Adding to 22151023 its reverse (32015122), we get a palindrome (54166145).

The spelling of 22151023 in words is "twenty-two million, one hundred fifty-one thousand, twenty-three".