21020332002202 has 16 divisors (see below), whose sum is σ = 33994202723712. Its totient is φ = 9690754037040.

The previous prime is 21020332002199. The next prime is 21020332002203. The reversal of 21020332002202 is 20220023302012.

It is a self number, because there is not a number n which added to its sum of digits gives 21020332002202.

It is not an unprimeable number, because it can be changed into a prime (21020332002203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455712174 + ... + 455758297.

It is an arithmetic number, because the mean of its divisors is an integer number (2124637670232).

Almost surely, 2^{21020332002202} is an apocalyptic number.

21020332002202 is a deficient number, since it is larger than the sum of its proper divisors (12973870721510).

21020332002202 is a wasteful number, since it uses less digits than its factorization.

21020332002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911471373.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21020332002202 its reverse (20220023302012), we get a palindrome (41240355304214).

The spelling of 21020332002202 in words is "twenty-one trillion, twenty billion, three hundred thirty-two million, two thousand, two hundred two".