20112222012233 has 4 divisors (see below), whose sum is σ = 21659316013188. Its totient is φ = 18565128011280.

The previous prime is 20112222012229. The next prime is 20112222012251. The reversal of 20112222012233 is 33221022221102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8730417553984 + 11381804458249 = 2954728^2 + 3373693^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112222012233 - 2² = 20112222012229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112222012199 and 20112222012208.

It is not an unprimeable number, because it can be changed into a prime (20112222012733) 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, 773547000458 + ... + 773547000483.

It is an arithmetic number, because the mean of its divisors is an integer number (5414829003297).

Almost surely, 2^{20112222012233} is an apocalyptic number.

It is an amenable number.

20112222012233 is a deficient number, since it is larger than the sum of its proper divisors (1547094000955).

20112222012233 is a wasteful number, since it uses less digits than its factorization.

20112222012233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547094000954.

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

Adding to 20112222012233 its reverse (33221022221102), we get a palindrome (53333244233335).

The spelling of 20112222012233 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-two million, twelve thousand, two hundred thirty-three".