221112203122 has 8 divisors (see below), whose sum is σ = 336339689472. Its totient is φ = 108998973300.

The previous prime is 221112203107. The next prime is 221112203129. The reversal of 221112203122 is 221302211122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221112203122.

It is not an unprimeable number, because it can be changed into a prime (221112203129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778563954 + ... + 778564237.

It is an arithmetic number, because the mean of its divisors is an integer number (42042461184).

Almost surely, 2^221112203122 is an apocalyptic number.

221112203122 is a deficient number, since it is larger than the sum of its proper divisors (115227486350).

221112203122 is a wasteful number, since it uses less digits than its factorization.

221112203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557128264.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221112203122 its reverse (221302211122), we get a palindrome (442414414244).

The spelling of 221112203122 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred three thousand, one hundred twenty-two".