210100220021210 has 32 divisors (see below), whose sum is σ = 386159204697552. Its totient is φ = 82283825756160.

The previous prime is 210100220021203. The next prime is 210100220021227. The reversal of 210100220021210 is 12120022001012.

It can be written as a sum of positive squares in 8 ways, for example, as 61180445734849 + 148919774286361 = 7821793^2 + 12203269^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1050296051 + ... + 1050496070.

Almost surely, 2^{210100220021210} is an apocalyptic number.

210100220021210 is a deficient number, since it is larger than the sum of its proper divisors (176058984676342).

210100220021210 is a wasteful number, since it uses less digits than its factorization.

210100220021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100792338.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210100220021210 its reverse (12120022001012), we get a palindrome (222220242022222).

The spelling of 210100220021210 in words is "two hundred ten trillion, one hundred billion, two hundred twenty million, twenty-one thousand, two hundred ten".