221112021110210 has 16 divisors (see below), whose sum is σ = 398481736491000. Its totient is φ = 88338119890176.

The previous prime is 221112021110107. The next prime is 221112021110243. The reversal of 221112021110210 is 12011120211122.

221112021110210 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 216924853400161 + 4187167710049 = 14728369^2 + 2046257^2 .

It is a super-3 number, since 3×221112021110210³ (a number of 44 digits) contains 333 as substring.

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, 13336060535 + ... + 13336077114.

Almost surely, 2^{221112021110210} is an apocalyptic number.

221112021110210 is a deficient number, since it is larger than the sum of its proper divisors (177369715380790).

221112021110210 is a wasteful number, since it uses less digits than its factorization.

221112021110210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26672138485.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221112021110210 its reverse (12011120211122), we get a palindrome (233123141321332).

The spelling of 221112021110210 in words is "two hundred twenty-one trillion, one hundred twelve billion, twenty-one million, one hundred ten thousand, two hundred ten".