221012220200210 has 32 divisors (see below), whose sum is σ = 405487463961600. Its totient is φ = 86702762705728.

The previous prime is 221012220200119. The next prime is 221012220200243. The reversal of 221012220200210 is 12002022210122.

It is a happy number.

It is a super-2 number, since 2×221012220200210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80642810 + ... + 83338389.

It is an arithmetic number, because the mean of its divisors is an integer number (12671483248800).

Almost surely, 2^{221012220200210} is an apocalyptic number.

221012220200210 is a deficient number, since it is larger than the sum of its proper divisors (184475243761390).

221012220200210 is a wasteful number, since it uses less digits than its factorization.

221012220200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163983802.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221012220200210 its reverse (12002022210122), we get a palindrome (233014242410332).

The spelling of 221012220200210 in words is "two hundred twenty-one trillion, twelve billion, two hundred twenty million, two hundred thousand, two hundred ten".