21012022200002 has 32 divisors (see below), whose sum is σ = 33032112282624. Its totient is φ = 10012770676800.

The previous prime is 21012022199953. The next prime is 21012022200023. The reversal of 21012022200002 is 20000222021012.

It is a self number, because there is not a number n which added to its sum of digits gives 21012022200002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7933433 + ... + 10245164.

It is an arithmetic number, because the mean of its divisors is an integer number (1032253508832).

Almost surely, 2^{21012022200002} is an apocalyptic number.

21012022200002 is a deficient number, since it is larger than the sum of its proper divisors (12020090082622).

21012022200002 is a wasteful number, since it uses less digits than its factorization.

21012022200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18178914.

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

Adding to 21012022200002 its reverse (20000222021012), we get a palindrome (41012244221014).

The spelling of 21012022200002 in words is "twenty-one trillion, twelve billion, twenty-two million, two hundred thousand, two".