40221212113 has 8 divisors (see below), whose sum is σ = 40971652200. Its totient is φ = 39473710080.

The previous prime is 40221212107. The next prime is 40221212117. The reversal of 40221212113 is 31121212204.

It can be written as a sum of positive squares in 4 ways, for example, as 383846464 + 39837365649 = 19592^2 + 199593^2 .

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 40221212113 - 2²¹ = 40219114961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40221212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706870 + ... + 761647.

It is an arithmetic number, because the mean of its divisors is an integer number (5121456525).

Almost surely, 2^40221212113 is an apocalyptic number.

It is an amenable number.

40221212113 is a deficient number, since it is larger than the sum of its proper divisors (750440087).

40221212113 is a wasteful number, since it uses less digits than its factorization.

40221212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469027.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 40221212113 its reverse (31121212204), we get a palindrome (71342424317).

Subtracting from 40221212113 its reverse (31121212204), we obtain a palindrome (9099999909).

The spelling of 40221212113 in words is "forty billion, two hundred twenty-one million, two hundred twelve thousand, one hundred thirteen".