40222166431 has 4 divisors (see below), whose sum is σ = 40259170432. Its totient is φ = 40185162432.

The previous prime is 40222166393. The next prime is 40222166441. The reversal of 40222166431 is 13466122204.

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

It is a cyclic number.

It is not a de Polignac number, because 40222166431 - 2¹¹ = 40222164383 is a prime.

It is a super-2 number, since 2×40222166431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40222166393 and 40222166402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222166441) 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, 18500370 + ... + 18502543.

It is an arithmetic number, because the mean of its divisors is an integer number (10064792608).

Almost surely, 2^40222166431 is an apocalyptic number.

40222166431 is a deficient number, since it is larger than the sum of its proper divisors (37004001).

40222166431 is a wasteful number, since it uses less digits than its factorization.

40222166431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37004000.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 40222166431 its reverse (13466122204), we get a palindrome (53688288635).

The spelling of 40222166431 in words is "forty billion, two hundred twenty-two million, one hundred sixty-six thousand, four hundred thirty-one".