22024420402 has 4 divisors (see below), whose sum is σ = 33036630606. Its totient is φ = 11012210200.

The previous prime is 22024420387. The next prime is 22024420409. The reversal of 22024420402 is 20402442022.

It is a happy number.

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., 11620624401 + 10403796001 = 107799^2 + 101999^2 .

It is not an unprimeable number, because it can be changed into a prime (22024420409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506105099 + ... + 5506105102.

Almost surely, 2^22024420402 is an apocalyptic number.

22024420402 is a deficient number, since it is larger than the sum of its proper divisors (11012210204).

22024420402 is a wasteful number, since it uses less digits than its factorization.

22024420402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012210203.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22024420402 its reverse (20402442022), we get a palindrome (42426862424).

The spelling of 22024420402 in words is "twenty-two billion, twenty-four million, four hundred twenty thousand, four hundred two".