21033544222 has 8 divisors (see below), whose sum is σ = 31573166472. Its totient is φ = 10509155400.

The previous prime is 21033544211. The next prime is 21033544223. The reversal of 21033544222 is 22244533012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033544223) 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, 3804904 + ... + 3810427.

It is an arithmetic number, because the mean of its divisors is an integer number (3946645809).

Almost surely, 2^21033544222 is an apocalyptic number.

21033544222 is a deficient number, since it is larger than the sum of its proper divisors (10539622250).

21033544222 is a wasteful number, since it uses less digits than its factorization.

21033544222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616714.

The product of its (nonzero) digits is 11520, while the sum is 28.

The spelling of 21033544222 in words is "twenty-one billion, thirty-three million, five hundred forty-four thousand, two hundred twenty-two".