40402342121022 has 48 divisors (see below), whose sum is σ = 100191670312032. Its totient is φ = 11526475296960.

The previous prime is 40402342121021. The next prime is 40402342121111. The reversal of 40402342121022 is 22012124320404.

It is a happy number.

40402342121022 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 2 + 3 + 421 + 210 + 22 = 666.

40402342121022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40402342121021) 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 23 ways as a sum of consecutive naturals, for example, 236734129 + ... + 236904732.

It is an arithmetic number, because the mean of its divisors is an integer number (2087326464834).

Almost surely, 2^{40402342121022} is an apocalyptic number.

40402342121022 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40402342121022 is an abundant number, since it is smaller than the sum of its proper divisors (59789328191010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40402342121022 is a wasteful number, since it uses less digits than its factorization.

40402342121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473639553 (or 473639550 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 40402342121022 its reverse (22012124320404), we get a palindrome (62414466441426).

The spelling of 40402342121022 in words is "forty trillion, four hundred two billion, three hundred forty-two million, one hundred twenty-one thousand, twenty-two".