40420021022 has 4 divisors (see below), whose sum is σ = 60630031536. Its totient is φ = 20210010510.

The previous prime is 40420020997. The next prime is 40420021063. The reversal of 40420021022 is 22012002404.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105005254 + ... + 10105005257.

It is an arithmetic number, because the mean of its divisors is an integer number (15157507884).

Almost surely, 2^40420021022 is an apocalyptic number.

40420021022 is a deficient number, since it is larger than the sum of its proper divisors (20210010514).

40420021022 is a wasteful number, since it uses less digits than its factorization.

40420021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20210010513.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 40420021022 its reverse (22012002404), we get a palindrome (62432023426).

The spelling of 40420021022 in words is "forty billion, four hundred twenty million, twenty-one thousand, twenty-two".