201223223011 has 4 divisors (see below), whose sum is σ = 203979705592. Its totient is φ = 198466740432.

The previous prime is 201223222997. The next prime is 201223223017. The reversal of 201223223011 is 110322322102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110322322102 = 2 ⋅55161161051.

It is a cyclic number.

It is not a de Polignac number, because 201223223011 - 2³⁷ = 63784269539 is a prime.

It is a super-2 number, since 2×201223223011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201223223011.

It is not an unprimeable number, because it can be changed into a prime (201223223017) 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, 1378241181 + ... + 1378241326.

It is an arithmetic number, because the mean of its divisors is an integer number (50994926398).

Almost surely, 2^201223223011 is an apocalyptic number.

201223223011 is a deficient number, since it is larger than the sum of its proper divisors (2756482581).

201223223011 is an equidigital number, since it uses as much as digits as its factorization.

201223223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756482580.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201223223011 its reverse (110322322102), we get a palindrome (311545545113).

Subtracting from 201223223011 its reverse (110322322102), we obtain a palindrome (90900900909).

The spelling of 201223223011 in words is "two hundred one billion, two hundred twenty-three million, two hundred twenty-three thousand, eleven".