21224230344010 has 16 divisors (see below), whose sum is σ = 38206539421056. Its totient is φ = 8489042181648.

The previous prime is 21224230344001. The next prime is 21224230344013. The reversal of 21224230344010 is 1044303242212.

It is a self number, because there is not a number n which added to its sum of digits gives 21224230344010.

It is not an unprimeable number, because it can be changed into a prime (21224230344013) 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, 81107334 + ... + 81368593.

It is an arithmetic number, because the mean of its divisors is an integer number (2387908713816).

Almost surely, 2^{21224230344010} is an apocalyptic number.

21224230344010 is a deficient number, since it is larger than the sum of its proper divisors (16982309077046).

21224230344010 is a wasteful number, since it uses less digits than its factorization.

21224230344010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162488997.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21224230344010 its reverse (1044303242212), we get a palindrome (22268533586222).

The spelling of 21224230344010 in words is "twenty-one trillion, two hundred twenty-four billion, two hundred thirty million, three hundred forty-four thousand, ten".