22040020401 has 16 divisors (see below), whose sum is σ = 33587318784. Its totient is φ = 12593350224.

The previous prime is 22040020381. The next prime is 22040020441. The reversal of 22040020401 is 10402004022.

It is not a de Polignac number, because 22040020401 - 2¹¹ = 22040018353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22040020441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324466 + ... + 386468.

It is an arithmetic number, because the mean of its divisors is an integer number (2099207424).

Almost surely, 2^22040020401 is an apocalyptic number.

22040020401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22040020401 is a deficient number, since it is larger than the sum of its proper divisors (11547298383).

22040020401 is a wasteful number, since it uses less digits than its factorization.

22040020401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78940.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22040020401 its reverse (10402004022), we get a palindrome (32442024423).

The spelling of 22040020401 in words is "twenty-two billion, forty million, twenty thousand, four hundred one".