21000222221002 has 8 divisors (see below), whose sum is σ = 31503742855200. Its totient is φ = 10498974602604.

The previous prime is 21000222220981. The next prime is 21000222221039. The reversal of 21000222221002 is 20012222200012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568230852 + ... + 568267807.

It is an arithmetic number, because the mean of its divisors is an integer number (3937967856900).

Almost surely, 2^{21000222221002} is an apocalyptic number.

21000222221002 is a deficient number, since it is larger than the sum of its proper divisors (10503520634198).

21000222221002 is a wasteful number, since it uses less digits than its factorization.

21000222221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136507900.

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

Adding to 21000222221002 its reverse (20012222200012), we get a palindrome (41012444421014).

The spelling of 21000222221002 in words is "twenty-one trillion, two hundred twenty-two million, two hundred twenty-one thousand, two".