22121127 has 16 divisors (see below), whose sum is σ = 37454080. Its totient is φ = 12640536.

The previous prime is 22121089. The next prime is 22121137. The reversal of 22121127 is 72112122.

It is a happy number.

It is not a de Polignac number, because 22121127 - 2¹² = 22117031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58333 + ... + 58710.

It is an arithmetic number, because the mean of its divisors is an integer number (2340880).

Almost surely, 2^22121127 is an apocalyptic number.

22121127 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22121127 is a deficient number, since it is larger than the sum of its proper divisors (15332953).

22121127 is a wasteful number, since it uses less digits than its factorization.

22121127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117059 (or 117053 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 22121127 is about 4703.3102172831. The cubic root of 22121127 is about 280.7172385581.

Adding to 22121127 its reverse (72112122), we get a palindrome (94233249).

The spelling of 22121127 in words is "twenty-two million, one hundred twenty-one thousand, one hundred twenty-seven".