21233010222 has 32 divisors (see below), whose sum is σ = 47849045760. Its totient is φ = 6977983320.

The previous prime is 21233010209. The next prime is 21233010223. The reversal of 21233010222 is 22201033212.

21233010222 is a `hidden beast` number, since 212 + 330 + 102 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21233010195 and 21233010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233010223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2765208 + ... + 2772875.

It is an arithmetic number, because the mean of its divisors is an integer number (1495282680).

Almost surely, 2^21233010222 is an apocalyptic number.

21233010222 is an abundant number, since it is smaller than the sum of its proper divisors (26616035538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21233010222 is a wasteful number, since it uses less digits than its factorization.

21233010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538165 (or 5538159 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21233010222 its reverse (22201033212), we get a palindrome (43434043434).

The spelling of 21233010222 in words is "twenty-one billion, two hundred thirty-three million, ten thousand, two hundred twenty-two".