140422221 has 16 divisors (see below), whose sum is σ = 208216320. Its totient is φ = 93532320.

The previous prime is 140422207. The next prime is 140422223. The reversal of 140422221 is 122224041.

140422221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140422221 - 2⁵ = 140422189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140422194 and 140422203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140422223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54441 + ... + 56961.

It is an arithmetic number, because the mean of its divisors is an integer number (13013520).

Almost surely, 2^140422221 is an apocalyptic number.

It is an amenable number.

140422221 is a deficient number, since it is larger than the sum of its proper divisors (67794099).

140422221 is a wasteful number, since it uses less digits than its factorization.

140422221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593 (or 4587 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 140422221 is about 11849.9882278423. The cubic root of 140422221 is about 519.7708815575.

Adding to 140422221 its reverse (122224041), we get a palindrome (262646262).

The spelling of 140422221 in words is "one hundred forty million, four hundred twenty-two thousand, two hundred twenty-one".