22021120202002 has 4 divisors (see below), whose sum is σ = 33031680303006. Its totient is φ = 11010560101000.

The previous prime is 22021120201991. The next prime is 22021120202023. The reversal of 22021120202002 is 20020202112022.

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., 14925774565321 + 7095345636681 = 3863389^2 + 2663709^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505280050499 + ... + 5505280050502.

Almost surely, 2^{22021120202002} is an apocalyptic number.

22021120202002 is a deficient number, since it is larger than the sum of its proper divisors (11010560101004).

22021120202002 is a wasteful number, since it uses less digits than its factorization.

22021120202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010560101003.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021120202002 its reverse (20020202112022), we get a palindrome (42041322314024).

The spelling of 22021120202002 in words is "twenty-two trillion, twenty-one billion, one hundred twenty million, two hundred two thousand, two".