1216011514 has 8 divisors (see below), whose sum is σ = 1920018240. Its totient is φ = 576005436.

The previous prime is 1216011481. The next prime is 1216011523. The reversal of 1216011514 is 4151106121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16000114 + ... + 16000189.

It is an arithmetic number, because the mean of its divisors is an integer number (240002280).

Almost surely, 2^1216011514 is an apocalyptic number.

1216011514 is a deficient number, since it is larger than the sum of its proper divisors (704006726).

1216011514 is a wasteful number, since it uses less digits than its factorization.

1216011514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32000324.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1216011514 is about 34871.3566412321. The cubic root of 1216011514 is about 1067.3640283352.

Adding to 1216011514 its reverse (4151106121), we get a palindrome (5367117635).

The spelling of 1216011514 in words is "one billion, two hundred sixteen million, eleven thousand, five hundred fourteen".