40402221011 has 4 divisors (see below), whose sum is σ = 40402749000. Its totient is φ = 40401693024.

The previous prime is 40402220987. The next prime is 40402221037. The reversal of 40402221011 is 11012220404.

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 40402221011 - 2³⁴ = 23222351827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40402221311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124721 + ... + 310418.

It is an arithmetic number, because the mean of its divisors is an integer number (10100687250).

Almost surely, 2^40402221011 is an apocalyptic number.

40402221011 is a deficient number, since it is larger than the sum of its proper divisors (527989).

40402221011 is an equidigital number, since it uses as much as digits as its factorization.

40402221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527988.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 40402221011 its reverse (11012220404), we get a palindrome (51414441415).

The spelling of 40402221011 in words is "forty billion, four hundred two million, two hundred twenty-one thousand, eleven".