221332022012 has 12 divisors (see below), whose sum is σ = 387358035456. Its totient is φ = 110658297600.

The previous prime is 221332021987. The next prime is 221332022027. The reversal of 221332022012 is 210220233122.

It is a happy number.

221332022012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863548 + ... + 1978755.

It is an arithmetic number, because the mean of its divisors is an integer number (32279836288).

Almost surely, 2^221332022012 is an apocalyptic number.

It is an amenable number.

221332022012 is a deficient number, since it is larger than the sum of its proper divisors (166026013444).

221332022012 is a wasteful number, since it uses less digits than its factorization.

221332022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856708 (or 3856706 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221332022012 its reverse (210220233122), we get a palindrome (431552255134).

The spelling of 221332022012 in words is "two hundred twenty-one billion, three hundred thirty-two million, twenty-two thousand, twelve".