22012022002 has 4 divisors (see below), whose sum is σ = 33018033006. Its totient is φ = 11006011000.

The previous prime is 22012021979. The next prime is 22012022003. The reversal of 22012022002 is 20022021022.

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., 15602258281 + 6409763721 = 124909^2 + 80061^2 .

It is a super-2 number, since 2×22012022002² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22012022003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5503005499 + ... + 5503005502.

Almost surely, 2^22012022002 is an apocalyptic number.

22012022002 is a deficient number, since it is larger than the sum of its proper divisors (11006011004).

22012022002 is a wasteful number, since it uses less digits than its factorization.

22012022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006011003.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22012022002 its reverse (20022021022), we get a palindrome (42034043024).

The spelling of 22012022002 in words is "twenty-two billion, twelve million, twenty-two thousand, two".