10223311621 has 2 divisors, whose sum is σ = 10223311622. Its totient is φ = 10223311620.

The previous prime is 10223311597. The next prime is 10223311633. The reversal of 10223311621 is 12611332201.

It is a happy number.

10223311621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7927943521 + 2295368100 = 89039^2 + 47910^2 .

It is a cyclic number.

It is not a de Polignac number, because 10223311621 - 2¹³ = 10223303429 is a prime.

It is a super-2 number, since 2×10223311621² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10223311592 and 10223311601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10223311661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111655810 + 5111655811.

It is an arithmetic number, because the mean of its divisors is an integer number (5111655811).

Almost surely, 2^10223311621 is an apocalyptic number.

It is an amenable number.

10223311621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10223311621 is an equidigital number, since it uses as much as digits as its factorization.

10223311621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 10223311621 its reverse (12611332201), we get a palindrome (22834643822).

The spelling of 10223311621 in words is "ten billion, two hundred twenty-three million, three hundred eleven thousand, six hundred twenty-one".