21221202200002 has 16 divisors (see below), whose sum is σ = 36413491453632. Its totient is φ = 9086229022320.

The previous prime is 21221202199957. The next prime is 21221202200021. The reversal of 21221202200002 is 20000220212212.

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, 714311328 + ... + 714341035.

It is an arithmetic number, because the mean of its divisors is an integer number (2275843215852).

Almost surely, 2^{21221202200002} is an apocalyptic number.

21221202200002 is a deficient number, since it is larger than the sum of its proper divisors (15192289253630).

21221202200002 is a wasteful number, since it uses less digits than its factorization.

21221202200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428653433.

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

Adding to 21221202200002 its reverse (20000220212212), we get a palindrome (41221422412214).

The spelling of 21221202200002 in words is "twenty-one trillion, two hundred twenty-one billion, two hundred two million, two hundred thousand, two".