22201640123 has 16 divisors (see below), whose sum is σ = 24974865216. Its totient is φ = 19582464000.

The previous prime is 22201640063. The next prime is 22201640129. The reversal of 22201640123 is 32104610222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22201640123 - 2¹² = 22201636027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201640129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254123 + ... + 330123.

It is an arithmetic number, because the mean of its divisors is an integer number (1560929076).

Almost surely, 2^22201640123 is an apocalyptic number.

22201640123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22201640123 is a deficient number, since it is larger than the sum of its proper divisors (2773225093).

22201640123 is a wasteful number, since it uses less digits than its factorization.

22201640123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77014.

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 22201640123 in words is "twenty-two billion, two hundred one million, six hundred forty thousand, one hundred twenty-three".