221112442442 has 32 divisors (see below), whose sum is σ = 348454524672. Its totient is φ = 105027272064.

The previous prime is 221112442429. The next prime is 221112442469. The reversal of 221112442442 is 244244211122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19226438 + ... + 19237934.

It is an arithmetic number, because the mean of its divisors is an integer number (10889203896).

Almost surely, 2^221112442442 is an apocalyptic number.

221112442442 is a deficient number, since it is larger than the sum of its proper divisors (127342082230).

221112442442 is a wasteful number, since it uses less digits than its factorization.

221112442442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14342.

The product of its digits is 8192, while the sum is 29.

Adding to 221112442442 its reverse (244244211122), we get a palindrome (465356653564).

The spelling of 221112442442 in words is "two hundred twenty-one billion, one hundred twelve million, four hundred forty-two thousand, four hundred forty-two".