40202212331 has 4 divisors (see below), whose sum is σ = 40518765312. Its totient is φ = 39885659352.

The previous prime is 40202212313. The next prime is 40202212363. The reversal of 40202212331 is 13321220204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40202212331 is a prime.

It is a super-2 number, since 2×40202212331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40202212231) 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, 158276300 + ... + 158276553.

It is an arithmetic number, because the mean of its divisors is an integer number (10129691328).

Almost surely, 2^40202212331 is an apocalyptic number.

40202212331 is a deficient number, since it is larger than the sum of its proper divisors (316552981).

40202212331 is a wasteful number, since it uses less digits than its factorization.

40202212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316552980.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40202212331 its reverse (13321220204), we get a palindrome (53523432535).

The spelling of 40202212331 in words is "forty billion, two hundred two million, two hundred twelve thousand, three hundred thirty-one".