21011012330110 has 32 divisors (see below), whose sum is σ = 41292341136864. Its totient is φ = 7634006400000.

The previous prime is 21011012330059. The next prime is 21011012330111. The reversal of 21011012330110 is 1103321011012.

It is a happy number.

It is a super-2 number, since 2×21011012330110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011012330111) 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, 79388791 + ... + 79653010.

It is an arithmetic number, because the mean of its divisors is an integer number (1290385660527).

Almost surely, 2^{21011012330110} is an apocalyptic number.

21011012330110 is a deficient number, since it is larger than the sum of its proper divisors (20281328806754).

21011012330110 is a wasteful number, since it uses less digits than its factorization.

21011012330110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159043020.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 21011012330110 its reverse (1103321011012), we get a palindrome (22114333341122).

The spelling of 21011012330110 in words is "twenty-one trillion, eleven billion, twelve million, three hundred thirty thousand, one hundred ten".