21033222232210 has 16 divisors (see below), whose sum is σ = 37860690911256. Its totient is φ = 8413090916608.

The previous prime is 21033222232193. The next prime is 21033222232213. The reversal of 21033222232210 is 1223222233012.

It can be written as a sum of positive squares in 4 ways, for example, as 7064682254809 + 13968539977401 = 2657947^2 + 3737451^2 .

It is a super-2 number, since 2×21033222232210² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21033222232213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24300439 + ... + 25151098.

Almost surely, 2^{21033222232210} is an apocalyptic number.

21033222232210 is a deficient number, since it is larger than the sum of its proper divisors (16827468679046).

21033222232210 is a wasteful number, since it uses less digits than its factorization.

21033222232210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49494077.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21033222232210 its reverse (1223222233012), we get a palindrome (22256444465222).

The spelling of 21033222232210 in words is "twenty-one trillion, thirty-three billion, two hundred twenty-two million, two hundred thirty-two thousand, two hundred ten".