221042240122 has 16 divisors (see below), whose sum is σ = 361845070272. Its totient is φ = 100434971520.

The previous prime is 221042240063. The next prime is 221042240123.

221042240122 is nontrivially palindromic in base 10.

221042240122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 221042240093 and 221042240102.

It is not an unprimeable number, because it can be changed into a prime (221042240123) 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, 1880358 + ... + 1994449.

It is an arithmetic number, because the mean of its divisors is an integer number (22615316892).

Almost surely, 2^221042240122 is an apocalyptic number.

221042240122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221042240122 is a deficient number, since it is larger than the sum of its proper divisors (140802830150).

221042240122 is a wasteful number, since it uses less digits than its factorization.

221042240122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877413.

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

It can be divided in two parts, 221042 and 240122, that added together give a palindrome (461164).

The spelling of 221042240122 in words is "two hundred twenty-one billion, forty-two million, two hundred forty thousand, one hundred twenty-two".