11223221964 has 12 divisors (see below), whose sum is σ = 26187517944. Its totient is φ = 3741073984.

The previous prime is 11223221963. The next prime is 11223222013. The reversal of 11223221964 is 46912232211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×11223221964³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (11223221963) 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, 467634237 + ... + 467634260.

It is an arithmetic number, because the mean of its divisors is an integer number (2182293162).

Almost surely, 2^11223221964 is an apocalyptic number.

It is an amenable number.

11223221964 is an abundant number, since it is smaller than the sum of its proper divisors (14964295980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11223221964 is a wasteful number, since it uses less digits than its factorization.

11223221964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935268504 (or 935268502 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The spelling of 11223221964 in words is "eleven billion, two hundred twenty-three million, two hundred twenty-one thousand, nine hundred sixty-four".