211214401 has 2 divisors, whose sum is σ = 211214402. Its totient is φ = 211214400.

The previous prime is 211214383. The next prime is 211214461. The reversal of 211214401 is 104412112.

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., 202208400 + 9006001 = 14220^2 + 3001^2 .

It is a cyclic number.

It is not a de Polignac number, because 211214401 - 2¹⁷ = 211083329 is a prime.

It is a super-2 number, since 2×211214401² = 89223046379577602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211214461) 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, 105607200 + 105607201.

It is an arithmetic number, because the mean of its divisors is an integer number (105607201).

Almost surely, 2^211214401 is an apocalyptic number.

It is an amenable number.

211214401 is a deficient number, since it is larger than the sum of its proper divisors (1).

211214401 is an equidigital number, since it uses as much as digits as its factorization.

211214401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 211214401 is about 14533.2171593216. The cubic root of 211214401 is about 595.5357564097.

Adding to 211214401 its reverse (104412112), we get a palindrome (315626513).

The spelling of 211214401 in words is "two hundred eleven million, two hundred fourteen thousand, four hundred one".