22001021021002 has 16 divisors (see below), whose sum is σ = 33022362889152. Its totient is φ = 10993568775840.

The previous prime is 22001021020987. The next prime is 22001021021051. The reversal of 22001021021002 is 20012012010022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21085483 + ... + 22104289.

It is an arithmetic number, because the mean of its divisors is an integer number (2063897680572).

Almost surely, 2^{22001021021002} is an apocalyptic number.

22001021021002 is a deficient number, since it is larger than the sum of its proper divisors (11021341868150).

22001021021002 is a wasteful number, since it uses less digits than its factorization.

22001021021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025613.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22001021021002 its reverse (20012012010022), we get a palindrome (42013033031024).

The spelling of 22001021021002 in words is "twenty-two trillion, one billion, twenty-one million, twenty-one thousand, two".