20112201001 has 4 divisors (see below), whose sum is σ = 20113304400. Its totient is φ = 20111097604.

The previous prime is 20112200971. The next prime is 20112201013. The reversal of 20112201001 is 10010221102.

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 20112201001 - 2¹³ = 20112192809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112241001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523891 + ... + 560968.

It is an arithmetic number, because the mean of its divisors is an integer number (5028326100).

Almost surely, 2^20112201001 is an apocalyptic number.

It is an amenable number.

20112201001 is a deficient number, since it is larger than the sum of its proper divisors (1103399).

20112201001 is a wasteful number, since it uses less digits than its factorization.

20112201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103398.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20112201001 its reverse (10010221102), we get a palindrome (30122422103).

The spelling of 20112201001 in words is "twenty billion, one hundred twelve million, two hundred one thousand, one".