221222104042 has 32 divisors (see below), whose sum is σ = 343991450880. Its totient is φ = 106626723840.

The previous prime is 221222104003. The next prime is 221222104063. The reversal of 221222104042 is 240401222122.

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, 21198858 + ... + 21209290.

It is an arithmetic number, because the mean of its divisors is an integer number (10749732840).

Almost surely, 2^221222104042 is an apocalyptic number.

221222104042 is a deficient number, since it is larger than the sum of its proper divisors (122769346838).

221222104042 is a wasteful number, since it uses less digits than its factorization.

221222104042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13678.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 221222104042 its reverse (240401222122), we get a palindrome (461623326164).

The spelling of 221222104042 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred four thousand, forty-two".