40021561061422 has 4 divisors (see below), whose sum is σ = 60032341592136. Its totient is φ = 20010780530710.

The previous prime is 40021561061411. The next prime is 40021561061473. The reversal of 40021561061422 is 22416016512004.

40021561061422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005390265354 + ... + 10005390265357.

It is an arithmetic number, because the mean of its divisors is an integer number (15008085398034).

Almost surely, 2^{40021561061422} is an apocalyptic number.

40021561061422 is a deficient number, since it is larger than the sum of its proper divisors (20010780530714).

40021561061422 is a wasteful number, since it uses less digits than its factorization.

40021561061422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010780530713.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 40021561061422 its reverse (22416016512004), we get a palindrome (62437577573426).

The spelling of 40021561061422 in words is "forty trillion, twenty-one billion, five hundred sixty-one million, sixty-one thousand, four hundred twenty-two".