221112221123122 has 16 divisors (see below), whose sum is σ = 383616383637312. Its totient is φ = 93620665053360.

The previous prime is 221112221123119. The next prime is 221112221123147. The reversal of 221112221123122 is 221321122211122.

It is a super-2 number, since 2×221112221123122² (a number of 29 digits) contains 22 as substring.

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, 95142951129 + ... + 95142953452.

It is an arithmetic number, because the mean of its divisors is an integer number (23976023977332).

Almost surely, 2^{221112221123122} is an apocalyptic number.

221112221123122 is a deficient number, since it is larger than the sum of its proper divisors (162504162514190).

221112221123122 is a wasteful number, since it uses less digits than its factorization.

221112221123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190285904673.

The product of its digits is 768, while the sum is 25.

Adding to 221112221123122 its reverse (221321122211122), we get a palindrome (442433343334244).

The spelling of 221112221123122 in words is "two hundred twenty-one trillion, one hundred twelve billion, two hundred twenty-one million, one hundred twenty-three thousand, one hundred twenty-two".