20002221021002 has 16 divisors (see below), whose sum is σ = 32866720026624. Its totient is φ = 9054192840000.

The previous prime is 20002221020963. The next prime is 20002221021031. The reversal of 20002221021002 is 20012012220002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886284874 + ... + 1886295477.

It is an arithmetic number, because the mean of its divisors is an integer number (2054170001664).

Almost surely, 2^{20002221021002} is an apocalyptic number.

20002221021002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20002221021002 is a deficient number, since it is larger than the sum of its proper divisors (12864499005622).

20002221021002 is a wasteful number, since it uses less digits than its factorization.

20002221021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772580605.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20002221021002 its reverse (20012012220002), we get a palindrome (40014233241004).

The spelling of 20002221021002 in words is "twenty trillion, two billion, two hundred twenty-one million, twenty-one thousand, two".