22501922 has 4 divisors (see below), whose sum is σ = 33752886. Its totient is φ = 11250960.

The previous prime is 22501903. The next prime is 22501933. The reversal of 22501922 is 22910522.

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

It can be written as a sum of positive squares in only one way, i.e., 19193161 + 3308761 = 4381^2 + 1819^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625479 + ... + 5625482.

Almost surely, 2^22501922 is an apocalyptic number.

22501922 is a deficient number, since it is larger than the sum of its proper divisors (11250964).

22501922 is a wasteful number, since it uses less digits than its factorization.

22501922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11250963.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 22501922 is about 4743.6190825150. The cubic root of 22501922 is about 282.3188469743.

The spelling of 22501922 in words is "twenty-two million, five hundred one thousand, nine hundred twenty-two".