40221304433242 has 16 divisors (see below), whose sum is σ = 60347804446440. Its totient is φ = 20105369906688.

The previous prime is 40221304433209. The next prime is 40221304433251. The reversal of 40221304433242 is 24233440312204.

It can be written as a sum of positive squares in 4 ways, for example, as 12203221742721 + 28018082690521 = 3493311^2 + 5293211^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40221304433198 and 40221304433207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471501538 + ... + 471586834.

Almost surely, 2^{40221304433242} is an apocalyptic number.

40221304433242 is a deficient number, since it is larger than the sum of its proper divisors (20126500013198).

40221304433242 is a wasteful number, since it uses less digits than its factorization.

40221304433242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144465.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 40221304433242 its reverse (24233440312204), we get a palindrome (64454744745446).

The spelling of 40221304433242 in words is "forty trillion, two hundred twenty-one billion, three hundred four million, four hundred thirty-three thousand, two hundred forty-two".