221000110021112 has 32 divisors (see below), whose sum is σ = 420784376040000. Its totient is φ = 108801332817408.

The previous prime is 221000110021109. The next prime is 221000110021133. The reversal of 221000110021112 is 211120011000122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649188437 + ... + 649528772.

It is an arithmetic number, because the mean of its divisors is an integer number (13149511751250).

Almost surely, 2^{221000110021112} is an apocalyptic number.

It is an amenable number.

221000110021112 is a deficient number, since it is larger than the sum of its proper divisors (199784266018888).

221000110021112 is a wasteful number, since it uses less digits than its factorization.

221000110021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298717543 (or 1298717539 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221000110021112 its reverse (211120011000122), we get a palindrome (432120121021234).

The spelling of 221000110021112 in words is "two hundred twenty-one trillion, one hundred ten million, twenty-one thousand, one hundred twelve".