22021202002004 has 6 divisors (see below), whose sum is σ = 38537103503514. Its totient is φ = 11010601001000.

The previous prime is 22021202001989. The next prime is 22021202002021. The reversal of 22021202002004 is 40020020212022.

It can be written as a sum of positive squares in only one way, i.e., 13304548051600 + 8716653950404 = 3647540^2 + 2952398^2 .

It is a super-2 number, since 2×22021202002004² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752650250247 + ... + 2752650250254.

It is an arithmetic number, because the mean of its divisors is an integer number (6422850583919).

Almost surely, 2^{22021202002004} is an apocalyptic number.

It is an amenable number.

22021202002004 is a deficient number, since it is larger than the sum of its proper divisors (16515901501510).

22021202002004 is a wasteful number, since it uses less digits than its factorization.

22021202002004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505300500505 (or 5505300500503 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22021202002004 its reverse (40020020212022), we get a palindrome (62041222214026).

The spelling of 22021202002004 in words is "twenty-two trillion, twenty-one billion, two hundred two million, two thousand, four".