20021001210210 has 128 divisors (see below), whose sum is σ = 64515226374144. Its totient is φ = 3840192034560.

The previous prime is 20021001210209. The next prime is 20021001210251. The reversal of 20021001210210 is 1201210012002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 333319974 + ... + 333380033.

It is an arithmetic number, because the mean of its divisors is an integer number (504025206048).

Almost surely, 2^{20021001210210} is an apocalyptic number.

20021001210210 is an abundant number, since it is smaller than the sum of its proper divisors (44494225163934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021001210210 is a wasteful number, since it uses less digits than its factorization.

20021001210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666700048.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20021001210210 its reverse (1201210012002), we get a palindrome (21222211222212).

The spelling of 20021001210210 in words is "twenty trillion, twenty-one billion, one million, two hundred ten thousand, two hundred ten".