221231102222132 has 12 divisors (see below), whose sum is σ = 387154857726336. Its totient is φ = 110615428586040.

The previous prime is 221231102222057. The next prime is 221231102222159. The reversal of 221231102222132 is 231222201132122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26506958 + ... + 33839045.

It is an arithmetic number, because the mean of its divisors is an integer number (32262904810528).

Almost surely, 2^{221231102222132} is an apocalyptic number.

It is an amenable number.

221231102222132 is a deficient number, since it is larger than the sum of its proper divisors (165923755504204).

221231102222132 is a wasteful number, since it uses less digits than its factorization.

221231102222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61262518 (or 61262516 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 221231102222132 its reverse (231222201132122), we get a palindrome (452453303354254).

The spelling of 221231102222132 in words is "two hundred twenty-one trillion, two hundred thirty-one billion, one hundred two million, two hundred twenty-two thousand, one hundred thirty-two".