21020210202002 has 16 divisors (see below), whose sum is σ = 34403442995232. Its totient is φ = 9552770058720.

The previous prime is 21020210201999. The next prime is 21020210202059. The reversal of 21020210202002 is 20020201202012.

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, 93432203 + ... + 93656910.

It is an arithmetic number, because the mean of its divisors is an integer number (2150215187202).

Almost surely, 2^{21020210202002} is an apocalyptic number.

21020210202002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21020210202002 is a deficient number, since it is larger than the sum of its proper divisors (13383232793230).

21020210202002 is a wasteful number, since it uses less digits than its factorization.

21020210202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187094233.

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

Adding to 21020210202002 its reverse (20020201202012), we get a palindrome (41040411404014).

It can be divided in two parts, 21020210 and 202002, that added together give a palindrome (21222212).

The spelling of 21020210202002 in words is "twenty-one trillion, twenty billion, two hundred ten million, two hundred two thousand, two".