40222402421 has 8 divisors (see below), whose sum is σ = 40652025120. Its totient is φ = 39793774608.

The previous prime is 40222402417. The next prime is 40222402427. The reversal of 40222402421 is 12420422204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40222402421 - 2² = 40222402417 is a prime.

It is a super-2 number, since 2×40222402421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222402427) 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, 167291 + ... + 329288.

It is an arithmetic number, because the mean of its divisors is an integer number (5081503140).

Almost surely, 2^40222402421 is an apocalyptic number.

It is an amenable number.

40222402421 is a deficient number, since it is larger than the sum of its proper divisors (429622699).

40222402421 is a wasteful number, since it uses less digits than its factorization.

40222402421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497443.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 40222402421 its reverse (12420422204), we get a palindrome (52642824625).

The spelling of 40222402421 in words is "forty billion, two hundred twenty-two million, four hundred two thousand, four hundred twenty-one".