22520151 has 12 divisors (see below), whose sum is σ = 33943728. Its totient is φ = 14360544.

The previous prime is 22520143. The next prime is 22520203. The reversal of 22520151 is 15102522.

It is not a de Polignac number, because 22520151 - 2³ = 22520143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54190 + ... + 54603.

It is an arithmetic number, because the mean of its divisors is an integer number (2828644).

Almost surely, 2^22520151 is an apocalyptic number.

22520151 is a deficient number, since it is larger than the sum of its proper divisors (11423577).

22520151 is a wasteful number, since it uses less digits than its factorization.

22520151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108822 (or 108819 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 22520151 is about 4745.5401167833. The cubic root of 22520151 is about 282.3950627034.

Adding to 22520151 its reverse (15102522), we get a palindrome (37622673).

The spelling of 22520151 in words is "twenty-two million, five hundred twenty thousand, one hundred fifty-one".