40222243121 has 4 divisors (see below), whose sum is σ = 40488615744. Its totient is φ = 39955870500.

The previous prime is 40222243109. The next prime is 40222243141. The reversal of 40222243121 is 12134222204.

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 40222243121 - 2⁶ = 40222243057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40222243141) 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, 133186085 + ... + 133186386.

It is an arithmetic number, because the mean of its divisors is an integer number (10122153936).

Almost surely, 2^40222243121 is an apocalyptic number.

It is an amenable number.

40222243121 is a deficient number, since it is larger than the sum of its proper divisors (266372623).

40222243121 is a wasteful number, since it uses less digits than its factorization.

40222243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266372622.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40222243121 its reverse (12134222204), we get a palindrome (52356465325).

The spelling of 40222243121 in words is "forty billion, two hundred twenty-two million, two hundred forty-three thousand, one hundred twenty-one".