221211230211110 has 16 divisors (see below), whose sum is σ = 402122592742032. Its totient is φ = 87608408004000.

The previous prime is 221211230211107. The next prime is 221211230211229. The reversal of 221211230211110 is 11112032112122.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 109510508996 + ... + 109510511015.

It is an arithmetic number, because the mean of its divisors is an integer number (25132662046377).

Almost surely, 2^{221211230211110} is an apocalyptic number.

221211230211110 is a deficient number, since it is larger than the sum of its proper divisors (180911362530922).

221211230211110 is a wasteful number, since it uses less digits than its factorization.

221211230211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219021020119.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 221211230211110 its reverse (11112032112122), we get a palindrome (232323262323232).

The spelling of 221211230211110 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred thirty million, two hundred eleven thousand, one hundred ten".