40122244021 has 8 divisors (see below), whose sum is σ = 40741794720. Its totient is φ = 39503302608.

The previous prime is 40122243919. The next prime is 40122244027. The reversal of 40122244021 is 12044222104.

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 40122244021 - 2⁹ = 40122243509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40122243983 and 40122244001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122244027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18706 + ... + 283891.

It is an arithmetic number, because the mean of its divisors is an integer number (5092724340).

Almost surely, 2^40122244021 is an apocalyptic number.

It is an amenable number.

40122244021 is a deficient number, since it is larger than the sum of its proper divisors (619550699).

40122244021 is a wasteful number, since it uses less digits than its factorization.

40122244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304643.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 40122244021 its reverse (12044222104), we get a palindrome (52166466125).

The spelling of 40122244021 in words is "forty billion, one hundred twenty-two million, two hundred forty-four thousand, twenty-one".