20133112222 has 4 divisors (see below), whose sum is σ = 30199668336. Its totient is φ = 10066556110.

The previous prime is 20133112201. The next prime is 20133112243. The reversal of 20133112222 is 22221133102.

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

It is an interprime number because it is at equal distance from previous prime (20133112201) and next prime (20133112243).

It is a self number, because there is not a number n which added to its sum of digits gives 20133112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033278054 + ... + 5033278057.

It is an arithmetic number, because the mean of its divisors is an integer number (7549917084).

Almost surely, 2^20133112222 is an apocalyptic number.

20133112222 is a deficient number, since it is larger than the sum of its proper divisors (10066556114).

20133112222 is a wasteful number, since it uses less digits than its factorization.

20133112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066556113.

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

Adding to 20133112222 its reverse (22221133102), we get a palindrome (42354245324).

It can be divided in two parts, 20133 and 112222, that added together give a triangular number (132355 = T₅₁₄).

The spelling of 20133112222 in words is "twenty billion, one hundred thirty-three million, one hundred twelve thousand, two hundred twenty-two".