20113222201 has 4 divisors (see below), whose sum is σ = 20134462032. Its totient is φ = 20091982372.

The previous prime is 20113222153. The next prime is 20113222219. The reversal of 20113222201 is 10222231102.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10222231102 = 2 ⋅5111115551.

It is a cyclic number.

It is not a de Polignac number, because 20113222201 - 2¹⁵ = 20113189433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113222501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10618495 + ... + 10620388.

It is an arithmetic number, because the mean of its divisors is an integer number (5033615508).

Almost surely, 2^20113222201 is an apocalyptic number.

It is an amenable number.

20113222201 is a deficient number, since it is larger than the sum of its proper divisors (21239831).

20113222201 is an equidigital number, since it uses as much as digits as its factorization.

20113222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21239830.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20113222201 its reverse (10222231102), we get a palindrome (30335453303).

The spelling of 20113222201 in words is "twenty billion, one hundred thirteen million, two hundred twenty-two thousand, two hundred one".