10123421224421 has 2 divisors, whose sum is σ = 10123421224422. Its totient is φ = 10123421224420.

The previous prime is 10123421224387. The next prime is 10123421224453. The reversal of 10123421224421 is 12442212432101.

10123421224421 is digitally balanced in base 2, 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., 8430718744900 + 1692702479521 = 2903570^2 + 1301039^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123421224421 - 2²² = 10123417030117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10123421226421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061710612210 + 5061710612211.

It is an arithmetic number, because the mean of its divisors is an integer number (5061710612211).

Almost surely, 2^{10123421224421} is an apocalyptic number.

It is an amenable number.

10123421224421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123421224421 is an equidigital number, since it uses as much as digits as its factorization.

10123421224421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 10123421224421 its reverse (12442212432101), we get a palindrome (22565633656522).

The spelling of 10123421224421 in words is "ten trillion, one hundred twenty-three billion, four hundred twenty-one million, two hundred twenty-four thousand, four hundred twenty-one".