100212401 has 2 divisors, whose sum is σ = 100212402. Its totient is φ = 100212400.

The previous prime is 100212383. The next prime is 100212407. The reversal of 100212401 is 104212001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88378801 + 11833600 = 9401^2 + 3440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100212401 is a prime.

It is not a weakly prime, because it can be changed into another prime (100212407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106200 + 50106201.

It is an arithmetic number, because the mean of its divisors is an integer number (50106201).

Almost surely, 2^100212401 is an apocalyptic number.

It is an amenable number.

100212401 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212401 is an equidigital number, since it uses as much as digits as its factorization.

100212401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 100212401 is about 10010.6144167079. The cubic root of 100212401 is about 464.4872770037.

Adding to 100212401 its reverse (104212001), we get a palindrome (204424402).

The spelling of 100212401 in words is "one hundred million, two hundred twelve thousand, four hundred one".