221240242112 has 56 divisors (see below), whose sum is σ = 439931251200. Its totient is φ = 110391724800.

The previous prime is 221240242099. The next prime is 221240242117. The reversal of 221240242112 is 211242042122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221240242117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105401639 + ... + 105403737.

It is an arithmetic number, because the mean of its divisors is an integer number (7855915200).

Almost surely, 2^221240242112 is an apocalyptic number.

It is an amenable number.

221240242112 is a deficient number, since it is larger than the sum of its proper divisors (218691009088).

221240242112 is a wasteful number, since it uses less digits than its factorization.

221240242112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729 (or 4719 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 221240242112 its reverse (211242042122), we get a palindrome (432482284234).

The spelling of 221240242112 in words is "two hundred twenty-one billion, two hundred forty million, two hundred forty-two thousand, one hundred twelve".