221210022112 has 24 divisors (see below), whose sum is σ = 438640385400. Its totient is φ = 109809289344.

The previous prime is 221210022109. The next prime is 221210022149. The reversal of 221210022112 is 211220012122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24861787 + ... + 24870682.

It is an arithmetic number, because the mean of its divisors is an integer number (18276682725).

Almost surely, 2^221210022112 is an apocalyptic number.

It is an amenable number.

221210022112 is a deficient number, since it is larger than the sum of its proper divisors (217430363288).

221210022112 is a wasteful number, since it uses less digits than its factorization.

221210022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49732618 (or 49732610 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221210022112 its reverse (211220012122), we get a palindrome (432430034234).

The spelling of 221210022112 in words is "two hundred twenty-one billion, two hundred ten million, twenty-two thousand, one hundred twelve".