221121121211192 has 16 divisors (see below), whose sum is σ = 414606908484960. Its totient is φ = 110559278948544.

The previous prime is 221121121211167. The next prime is 221121121211203. The reversal of 221121121211192 is 291112121121122.

221121121211192 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159473693 + ... + 160854284.

It is an arithmetic number, because the mean of its divisors is an integer number (25912931780310).

Almost surely, 2^{221121121211192} is an apocalyptic number.

It is an amenable number.

221121121211192 is a deficient number, since it is larger than the sum of its proper divisors (193485787273768).

221121121211192 is a wasteful number, since it uses less digits than its factorization.

221121121211192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320414270 (or 320414266 counting only the distinct ones).

The product of its digits is 576, while the sum is 29.

The spelling of 221121121211192 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, one hundred ninety-two".