221111112022022 has 4 divisors (see below), whose sum is σ = 331666668033036. Its totient is φ = 110555556011010.

The previous prime is 221111112021967. The next prime is 221111112022033. The reversal of 221111112022022 is 220220211111122.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 221111112021985 and 221111112022003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55277778005504 + ... + 55277778005507.

It is an arithmetic number, because the mean of its divisors is an integer number (82916667008259).

Almost surely, 2^{221111112022022} is an apocalyptic number.

221111112022022 is a deficient number, since it is larger than the sum of its proper divisors (110555556011014).

221111112022022 is a wasteful number, since it uses less digits than its factorization.

221111112022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110555556011013.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221111112022022 its reverse (220220211111122), we get a palindrome (441331323133144).

The spelling of 221111112022022 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred twelve million, twenty-two thousand, twenty-two".