21033032222 has 8 divisors (see below), whose sum is σ = 31563850176. Its totient is φ = 10511748832.

The previous prime is 21033032221. The next prime is 21033032239. The reversal of 21033032222 is 22223033012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21033032194 and 21033032203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033032221) 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, 2378123 + ... + 2386950.

It is an arithmetic number, because the mean of its divisors is an integer number (3945481272).

Almost surely, 2^21033032222 is an apocalyptic number.

21033032222 is a deficient number, since it is larger than the sum of its proper divisors (10530817954).

21033032222 is a wasteful number, since it uses less digits than its factorization.

21033032222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767282.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21033032222 its reverse (22223033012), we get a palindrome (43256065234).

The spelling of 21033032222 in words is "twenty-one billion, thirty-three million, thirty-two thousand, two hundred twenty-two".