212010401 has 2 divisors, whose sum is σ = 212010402. Its totient is φ = 212010400.

The previous prime is 212010397. The next prime is 212010427. The reversal of 212010401 is 104010212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184960000 + 27050401 = 13600^2 + 5201^2 .

It is a cyclic number.

It is not a de Polignac number, because 212010401 - 2² = 212010397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212010431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005200 + 106005201.

It is an arithmetic number, because the mean of its divisors is an integer number (106005201).

Almost surely, 2^212010401 is an apocalyptic number.

It is an amenable number.

212010401 is a deficient number, since it is larger than the sum of its proper divisors (1).

212010401 is an equidigital number, since it uses as much as digits as its factorization.

212010401 is an odious number, because the sum of its binary digits is odd.

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

The square root of 212010401 is about 14560.5769459867. The cubic root of 212010401 is about 596.2829469317.

Adding to 212010401 its reverse (104010212), we get a palindrome (316020613).

It can be divided in two parts, 2120 and 10401, that added together give a palindrome (12521).

The spelling of 212010401 in words is "two hundred twelve million, ten thousand, four hundred one".