21120202200002 has 16 divisors (see below), whose sum is σ = 31820557331232. Its totient is φ = 10513351783680.

The previous prime is 21120202199983. The next prime is 21120202200017. The reversal of 21120202200002 is 20000220202112.

It is a self number, because there is not a number n which added to its sum of digits gives 21120202200002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21396977 + ... + 22362267.

It is an arithmetic number, because the mean of its divisors is an integer number (1988784833202).

Almost surely, 2^{21120202200002} is an apocalyptic number.

21120202200002 is a deficient number, since it is larger than the sum of its proper divisors (10700355131230).

21120202200002 is a wasteful number, since it uses less digits than its factorization.

21120202200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013713.

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

Adding to 21120202200002 its reverse (20000220202112), we get a palindrome (41120422402114).

The spelling of 21120202200002 in words is "twenty-one trillion, one hundred twenty billion, two hundred two million, two hundred thousand, two".