11021223459 has 4 divisors (see below), whose sum is σ = 14694964616. Its totient is φ = 7347482304.

The previous prime is 11021223457. The next prime is 11021223461. The reversal of 11021223459 is 95432212011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95432212011 = 3 ⋅31810737337.

It is an interprime number because it is at equal distance from previous prime (11021223457) and next prime (11021223461).

It is not a de Polignac number, because 11021223459 - 2¹ = 11021223457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021223457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836870574 + ... + 1836870579.

It is an arithmetic number, because the mean of its divisors is an integer number (3673741154).

Almost surely, 2^11021223459 is an apocalyptic number.

11021223459 is a deficient number, since it is larger than the sum of its proper divisors (3673741157).

11021223459 is an equidigital number, since it uses as much as digits as its factorization.

11021223459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673741156.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 11021223459 in words is "eleven billion, twenty-one million, two hundred twenty-three thousand, four hundred fifty-nine".