11401430221 has 2 divisors, whose sum is σ = 11401430222. Its totient is φ = 11401430220.

The previous prime is 11401430197. The next prime is 11401430291. The reversal of 11401430221 is 12203410411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8633197225 + 2768232996 = 92915^2 + 52614^2 .

It is a cyclic number.

It is not a de Polignac number, because 11401430221 - 2¹⁵ = 11401397453 is a prime.

It is a super-2 number, since 2×11401430221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11401430291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700715110 + 5700715111.

It is an arithmetic number, because the mean of its divisors is an integer number (5700715111).

Almost surely, 2^11401430221 is an apocalyptic number.

It is an amenable number.

11401430221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11401430221 is an equidigital number, since it uses as much as digits as its factorization.

11401430221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11401430221 its reverse (12203410411), we get a palindrome (23604840632).

The spelling of 11401430221 in words is "eleven billion, four hundred one million, four hundred thirty thousand, two hundred twenty-one".