1216224948 has 24 divisors (see below), whose sum is σ = 3004791552. Its totient is φ = 381560704.

The previous prime is 1216224923. The next prime is 1216224949. The reversal of 1216224948 is 8494226121.

1216224948 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216224949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2980740 + ... + 2981147.

It is an arithmetic number, because the mean of its divisors is an integer number (125199648).

Almost surely, 2^1216224948 is an apocalyptic number.

It is an amenable number.

1216224948 is an abundant number, since it is smaller than the sum of its proper divisors (1788566604).

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

1216224948 is a wasteful number, since it uses less digits than its factorization.

1216224948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961911 (or 5961909 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 1216224948 is about 34874.4168123282. The cubic root of 1216224948 is about 1067.4264724936.

The spelling of 1216224948 in words is "one billion, two hundred sixteen million, two hundred twenty-four thousand, nine hundred forty-eight".