10112200421 has 2 divisors, whose sum is σ = 10112200422. Its totient is φ = 10112200420.

The previous prime is 10112200411. The next prime is 10112200451. The reversal of 10112200421 is 12400221101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10057883521 + 54316900 = 100289^2 + 7370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10112200421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10112200396 and 10112200405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10112200411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056100210 + 5056100211.

It is an arithmetic number, because the mean of its divisors is an integer number (5056100211).

Almost surely, 2^10112200421 is an apocalyptic number.

It is an amenable number.

10112200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10112200421 is an equidigital number, since it uses as much as digits as its factorization.

10112200421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10112200421 its reverse (12400221101), we get a palindrome (22512421522).

The spelling of 10112200421 in words is "ten billion, one hundred twelve million, two hundred thousand, four hundred twenty-one".