210221021131010 has 16 divisors (see below), whose sum is σ = 378712907031672. Its totient is φ = 84018393120000.

The previous prime is 210221021130997. The next prime is 210221021131063. The reversal of 210221021131010 is 10131120122012.

It is a happy number.

210221021131010 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 29287611710809 + 180933409420201 = 5411803^2 + 13451149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210221021131010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8751903941 + ... + 8751927960.

Almost surely, 2^{210221021131010} is an apocalyptic number.

210221021131010 is a deficient number, since it is larger than the sum of its proper divisors (168491885900662).

210221021131010 is a wasteful number, since it uses less digits than its factorization.

210221021131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17503833109.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 210221021131010 its reverse (10131120122012), we get a palindrome (220352141253022).

The spelling of 210221021131010 in words is "two hundred ten trillion, two hundred twenty-one billion, twenty-one million, one hundred thirty-one thousand, ten".