201021100210 has 16 divisors (see below), whose sum is σ = 413529120576. Its totient is φ = 68921520048.

The previous prime is 201021100123. The next prime is 201021100277. The reversal of 201021100210 is 12001120102.

201021100210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 1435864932 + ... + 1435865071.

It is an arithmetic number, because the mean of its divisors is an integer number (25845570036).

Almost surely, 2^201021100210 is an apocalyptic number.

201021100210 is an abundant number, since it is smaller than the sum of its proper divisors (212508020366).

201021100210 is a wasteful number, since it uses less digits than its factorization.

201021100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871730017.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201021100210 its reverse (12001120102), we get a palindrome (213022220312).

The spelling of 201021100210 in words is "two hundred one billion, twenty-one million, one hundred thousand, two hundred ten".