221140112012 has 12 divisors (see below), whose sum is σ = 387069185496. Its totient is φ = 110548916160.

The previous prime is 221140111981. The next prime is 221140112023. The reversal of 221140112012 is 210211041122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5261414 + ... + 5303277.

It is an arithmetic number, because the mean of its divisors is an integer number (32255765458).

Almost surely, 2^221140112012 is an apocalyptic number.

It is an amenable number.

221140112012 is a deficient number, since it is larger than the sum of its proper divisors (165929073484).

221140112012 is a wasteful number, since it uses less digits than its factorization.

221140112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10569928 (or 10569926 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221140112012 its reverse (210211041122), we get a palindrome (431351153134).

The spelling of 221140112012 in words is "two hundred twenty-one billion, one hundred forty million, one hundred twelve thousand, twelve".