210101011210 has 16 divisors (see below), whose sum is σ = 378260809416. Its totient is φ = 84022851328.

The previous prime is 210101011201. The next prime is 210101011261. The reversal of 210101011210 is 12110101012.

210101011210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 145193767849 + 64907243361 = 381043^2 + 254769^2 .

It is a super-2 number, since 2×210101011210² (a number of 23 digits) contains 22 as substring.

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, 2143819 + ... + 2239678.

Almost surely, 2^210101011210 is an apocalyptic number.

210101011210 is a deficient number, since it is larger than the sum of its proper divisors (168159798206).

210101011210 is a wasteful number, since it uses less digits than its factorization.

210101011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388297.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 210101011210 its reverse (12110101012), we get a palindrome (222211112222).

The spelling of 210101011210 in words is "two hundred ten billion, one hundred one million, eleven thousand, two hundred ten".