21224201223010 has 32 divisors (see below), whose sum is σ = 39521950835760. Its totient is φ = 8196720413952.

The previous prime is 21224201222989. The next prime is 21224201223019. The reversal of 21224201223010 is 1032210242212.

It can be written as a sum of positive squares in 8 ways, for example, as 4429884163441 + 16794317059569 = 2104729^2 + 4098087^2 .

It is not an unprimeable number, because it can be changed into a prime (21224201223019) 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, 10496292 + ... + 12353968.

Almost surely, 2^{21224201223010} is an apocalyptic number.

21224201223010 is a deficient number, since it is larger than the sum of its proper divisors (18297749612750).

21224201223010 is a wasteful number, since it uses less digits than its factorization.

21224201223010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897110.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21224201223010 its reverse (1032210242212), we get a palindrome (22256411465222).

The spelling of 21224201223010 in words is "twenty-one trillion, two hundred twenty-four billion, two hundred one million, two hundred twenty-three thousand, ten".