11221211049 has 4 divisors (see below), whose sum is σ = 14961614736. Its totient is φ = 7480807364.

The previous prime is 11221211041. The next prime is 11221211101. The reversal of 11221211049 is 94011212211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11221211049 - 2³ = 11221211041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221211041) 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, 1870201839 + ... + 1870201844.

It is an arithmetic number, because the mean of its divisors is an integer number (3740403684).

Almost surely, 2^11221211049 is an apocalyptic number.

It is an amenable number.

11221211049 is a deficient number, since it is larger than the sum of its proper divisors (3740403687).

11221211049 is an equidigital number, since it uses as much as digits as its factorization.

11221211049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740403686.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 11221211049 in words is "eleven billion, two hundred twenty-one million, two hundred eleven thousand, forty-nine".