22771051 has 4 divisors (see below), whose sum is σ = 22871592. Its totient is φ = 22670512.

The previous prime is 22771043. The next prime is 22771057. The reversal of 22771051 is 15017722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22771051 - 2³ = 22771043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22771057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49930 + ... + 50383.

It is an arithmetic number, because the mean of its divisors is an integer number (5717898).

Almost surely, 2^22771051 is an apocalyptic number.

22771051 is a deficient number, since it is larger than the sum of its proper divisors (100541).

22771051 is a wasteful number, since it uses less digits than its factorization.

22771051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100540.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 22771051 is about 4771.9022412451. The cubic root of 22771051 is about 283.4399255996.

Adding to 22771051 its reverse (15017722), we get a palindrome (37788773).

The spelling of 22771051 in words is "twenty-two million, seven hundred seventy-one thousand, fifty-one".