40222340331021 has 6 divisors (see below), whose sum is σ = 58098936033710. Its totient is φ = 26814893554008.

The previous prime is 40222340330983. The next prime is 40222340331037. The reversal of 40222340331021 is 12013304322204.

40222340331021 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 2 + 340 + 3 + 310 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21265111410921 + 18957228920100 = 4611411^2 + 4353990^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40222340331021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222340331091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2234574462826 + ... + 2234574462843.

Almost surely, 2^{40222340331021} is an apocalyptic number.

It is an amenable number.

40222340331021 is a deficient number, since it is larger than the sum of its proper divisors (17876595702689).

40222340331021 is a wasteful number, since it uses less digits than its factorization.

40222340331021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469148925675 (or 4469148925672 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40222340331021 its reverse (12013304322204), we get a palindrome (52235644653225).

The spelling of 40222340331021 in words is "forty trillion, two hundred twenty-two billion, three hundred forty million, three hundred thirty-one thousand, twenty-one".