20118922001 has 4 divisors (see below), whose sum is σ = 20586803952. Its totient is φ = 19651040052.

The previous prime is 20118921937. The next prime is 20118922003. The reversal of 20118922001 is 10022981102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20118922001 - 2⁶ = 20118921937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20118922003) 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 3 ways as a sum of consecutive naturals, for example, 233940911 + ... + 233940996.

It is an arithmetic number, because the mean of its divisors is an integer number (5146700988).

Almost surely, 2^20118922001 is an apocalyptic number.

It is an amenable number.

20118922001 is a deficient number, since it is larger than the sum of its proper divisors (467881951).

20118922001 is an equidigital number, since it uses as much as digits as its factorization.

20118922001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467881950.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 20118922001 in words is "twenty billion, one hundred eighteen million, nine hundred twenty-two thousand, one".