20021101210210 has 32 divisors (see below), whose sum is σ = 36476663815872. Its totient is φ = 7910979428160.

The previous prime is 20021101210177. The next prime is 20021101210223. The reversal of 20021101210210 is 1201210112002.

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 15 ways as a sum of consecutive naturals, for example, 5281600 + ... + 8242420.

It is an arithmetic number, because the mean of its divisors is an integer number (1139895744246).

Almost surely, 2^{20021101210210} is an apocalyptic number.

20021101210210 is a deficient number, since it is larger than the sum of its proper divisors (16455562605662).

20021101210210 is a wasteful number, since it uses less digits than its factorization.

20021101210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969058.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20021101210210 its reverse (1201210112002), we get a palindrome (21222311322212).

The spelling of 20021101210210 in words is "twenty trillion, twenty-one billion, one hundred one million, two hundred ten thousand, two hundred ten".