4402140121 has 4 divisors (see below), whose sum is σ = 4406461200. Its totient is φ = 4397819044.

The previous prime is 4402140103. The next prime is 4402140137. The reversal of 4402140121 is 1210412044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4402140121 - 2²³ = 4393751513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4402146121) 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, 2159011 + ... + 2161048.

It is an arithmetic number, because the mean of its divisors is an integer number (1101615300).

Almost surely, 2^4402140121 is an apocalyptic number.

It is an amenable number.

4402140121 is a deficient number, since it is larger than the sum of its proper divisors (4321079).

4402140121 is a wasteful number, since it uses less digits than its factorization.

4402140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321078.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 4402140121 is about 66348.6256150043. The cubic root of 4402140121 is about 1638.9081718750.

Adding to 4402140121 its reverse (1210412044), we get a palindrome (5612552165).

The spelling of 4402140121 in words is "four billion, four hundred two million, one hundred forty thousand, one hundred twenty-one".