102211441 has 2 divisors, whose sum is σ = 102211442. Its totient is φ = 102211440.

The previous prime is 102211409. The next prime is 102211451. The reversal of 102211441 is 144112201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79923600 + 22287841 = 8940^2 + 4721^2 .

It is a cyclic number.

It is not a de Polignac number, because 102211441 - 2⁵ = 102211409 is a prime.

It is not a weakly prime, because it can be changed into another prime (102211451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105720 + 51105721.

It is an arithmetic number, because the mean of its divisors is an integer number (51105721).

Almost surely, 2^102211441 is an apocalyptic number.

It is an amenable number.

102211441 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211441 is an equidigital number, since it uses as much as digits as its factorization.

102211441 is an evil number, because the sum of its binary digits is even.

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

The square root of 102211441 is about 10109.9674084539. The cubic root of 102211441 is about 467.5555002884. Note that the first 4 decimals are identical.

Adding to 102211441 its reverse (144112201), we get a palindrome (246323642).

The spelling of 102211441 in words is "one hundred two million, two hundred eleven thousand, four hundred forty-one".