22022402 has 4 divisors (see below), whose sum is σ = 33033606. Its totient is φ = 11011200.

The previous prime is 22022393. The next prime is 22022417. The reversal of 22022402 is 20422022.

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., 21335161 + 687241 = 4619^2 + 829^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505599 + ... + 5505602.

Almost surely, 2^22022402 is an apocalyptic number.

22022402 is a deficient number, since it is larger than the sum of its proper divisors (11011204).

22022402 is a wasteful number, since it uses less digits than its factorization.

22022402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011203.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 22022402 is about 4692.8032134322. The cubic root of 22022402 is about 280.2990088095.

Adding to 22022402 its reverse (20422022), we get a palindrome (42444424).

It can be divided in two parts, 220 and 22402, that added together give a palindrome (22622).

The spelling of 22022402 in words is "twenty-two million, twenty-two thousand, four hundred two".