1216224141 has 16 divisors (see below), whose sum is σ = 1769636160. Its totient is φ = 736862720.

The previous prime is 1216224091. The next prime is 1216224157. The reversal of 1216224141 is 1414226121.

1216224141 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1216224141 - 2¹¹ = 1216222093 is a prime.

It is a super-2 number, since 2×1216224141² = 2958402322302375762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216224641) 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, 195901 + ... + 202013.

It is an arithmetic number, because the mean of its divisors is an integer number (110602260).

Almost surely, 2^1216224141 is an apocalyptic number.

1216224141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1216224141 is a deficient number, since it is larger than the sum of its proper divisors (553412019).

1216224141 is a wasteful number, since it uses less digits than its factorization.

1216224141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12156.

The product of its digits is 768, while the sum is 24.

The square root of 1216224141 is about 34874.4052422403. The cubic root of 1216224141 is about 1067.4262364043.

The spelling of 1216224141 in words is "one billion, two hundred sixteen million, two hundred twenty-four thousand, one hundred forty-one".