11214881 has 2 divisors, whose sum is σ = 11214882. Its totient is φ = 11214880.

The previous prime is 11214871. The next prime is 11214943. The reversal of 11214881 is 18841211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 4661281 = 2560^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 11214881 - 2¹⁴ = 11198497 is a prime.

It is a super-2 number, since 2×11214881² = 251547111688322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11214881.

It is not a weakly prime, because it can be changed into another prime (11214821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607440 + 5607441.

It is an arithmetic number, because the mean of its divisors is an integer number (5607441).

Almost surely, 2^11214881 is an apocalyptic number.

It is an amenable number.

11214881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11214881 is an equidigital number, since it uses as much as digits as its factorization.

11214881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 26.

The square root of 11214881 is about 3348.8626427490. The cubic root of 11214881 is about 223.8368350993.

The spelling of 11214881 in words is "eleven million, two hundred fourteen thousand, eight hundred eighty-one".