10011224231621 has 2 divisors, whose sum is σ = 10011224231622. Its totient is φ = 10011224231620.

The previous prime is 10011224231587. The next prime is 10011224231627. The reversal of 10011224231621 is 12613242211001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6230964516100 + 3780259715521 = 2496190^2 + 1944289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10011224231621 is a prime.

It is a super-2 number, since 2×10011224231621² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011224231627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005612115810 + 5005612115811.

It is an arithmetic number, because the mean of its divisors is an integer number (5005612115811).

Almost surely, 2^{10011224231621} is an apocalyptic number.

It is an amenable number.

10011224231621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011224231621 is an equidigital number, since it uses as much as digits as its factorization.

10011224231621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 10011224231621 its reverse (12613242211001), we get a palindrome (22624466442622).

The spelling of 10011224231621 in words is "ten trillion, eleven billion, two hundred twenty-four million, two hundred thirty-one thousand, six hundred twenty-one".