21033303222 has 16 divisors (see below), whose sum is σ = 43517179440. Its totient is φ = 6769338912.

The previous prime is 21033303199. The next prime is 21033303283. The reversal of 21033303222 is 22230333012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60440353 + ... + 60440700.

It is an arithmetic number, because the mean of its divisors is an integer number (2719823715).

Almost surely, 2^21033303222 is an apocalyptic number.

21033303222 is an abundant number, since it is smaller than the sum of its proper divisors (22483876218).

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

21033303222 is a wasteful number, since it uses less digits than its factorization.

21033303222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120881087.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21033303222 its reverse (22230333012), we get a palindrome (43263636234).

The spelling of 21033303222 in words is "twenty-one billion, thirty-three million, three hundred three thousand, two hundred twenty-two".