22251107 has 2 divisors, whose sum is σ = 22251108. Its totient is φ = 22251106.

The previous prime is 22251101. The next prime is 22251127. The reversal of 22251107 is 70115222.

It is an a-pointer prime, because the next prime (22251127) can be obtained adding 22251107 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22251107 - 2²² = 18056803 is a prime.

It is a super-2 number, since 2×22251107² = 990223525450898, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22251101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11125553 + 11125554.

It is an arithmetic number, because the mean of its divisors is an integer number (11125554).

Almost surely, 2^22251107 is an apocalyptic number.

22251107 is a deficient number, since it is larger than the sum of its proper divisors (1).

22251107 is an equidigital number, since it uses as much as digits as its factorization.

22251107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 22251107 is about 4717.1079063341. The cubic root of 22251107 is about 281.2659808533.

Adding to 22251107 its reverse (70115222), we get a palindrome (92366329).

The spelling of 22251107 in words is "twenty-two million, two hundred fifty-one thousand, one hundred seven".