11221420333311 has 16 divisors (see below), whose sum is σ = 16978035494400. Its totient is φ = 7321777805304.

The previous prime is 11221420333283. The next prime is 11221420333379. The reversal of 11221420333311 is 11333302412211.

11221420333311 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 14 + 2 + 0 + 333 + 311 = 666.

It is not a de Polignac number, because 11221420333311 - 2⁹ = 11221420332799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221420233311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4421362141 + ... + 4421364678.

It is an arithmetic number, because the mean of its divisors is an integer number (1061127218400).

Almost surely, 2^{11221420333311} is an apocalyptic number.

11221420333311 is a deficient number, since it is larger than the sum of its proper divisors (5756615161089).

11221420333311 is an equidigital number, since it uses as much as digits as its factorization.

11221420333311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8842726875 (or 8842726869 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 11221420333311 its reverse (11333302412211), we get a palindrome (22554722745522).

The spelling of 11221420333311 in words is "eleven trillion, two hundred twenty-one billion, four hundred twenty million, three hundred thirty-three thousand, three hundred eleven".