140222111221 has 4 divisors (see below), whose sum is σ = 140229881100. Its totient is φ = 140214341344.

The previous prime is 140222111153. The next prime is 140222111231. The reversal of 140222111221 is 122111222041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69300562500 + 70921548721 = 263250^2 + 266311^2 .

It is a cyclic number.

It is not a de Polignac number, because 140222111221 - 2⁷ = 140222111093 is a prime.

It is a super-3 number, since 3×140222111221³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140222111231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3857806 + ... + 3893983.

It is an arithmetic number, because the mean of its divisors is an integer number (35057470275).

Almost surely, 2^140222111221 is an apocalyptic number.

It is an amenable number.

140222111221 is a deficient number, since it is larger than the sum of its proper divisors (7769879).

140222111221 is an equidigital number, since it uses as much as digits as its factorization.

140222111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769878.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 140222111221 its reverse (122111222041), we get a palindrome (262333333262).

The spelling of 140222111221 in words is "one hundred forty billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-one".