20010122233 has 4 divisors (see below), whose sum is σ = 20010405888. Its totient is φ = 20009838580.

The previous prime is 20010122189. The next prime is 20010122261. The reversal of 20010122233 is 33222101002.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20010122233 - 2³³ = 11420187641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010122933) 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, 55560 + ... + 207622.

It is an arithmetic number, because the mean of its divisors is an integer number (5002601472).

Almost surely, 2^20010122233 is an apocalyptic number.

It is an amenable number.

20010122233 is a deficient number, since it is larger than the sum of its proper divisors (283655).

20010122233 is a wasteful number, since it uses less digits than its factorization.

20010122233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283654.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20010122233 its reverse (33222101002), we get a palindrome (53232223235).

The spelling of 20010122233 in words is "twenty billion, ten million, one hundred twenty-two thousand, two hundred thirty-three".