1216526122 has 8 divisors (see below), whose sum is σ = 2085473376. Its totient is φ = 521368332.

The previous prime is 1216526117. The next prime is 1216526153. The reversal of 1216526122 is 2216256121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43447348 + ... + 43447375.

It is an arithmetic number, because the mean of its divisors is an integer number (260684172).

Almost surely, 2^1216526122 is an apocalyptic number.

1216526122 is a deficient number, since it is larger than the sum of its proper divisors (868947254).

1216526122 is an equidigital number, since it uses as much as digits as its factorization.

1216526122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86894732.

The product of its digits is 2880, while the sum is 28.

The square root of 1216526122 is about 34878.7345240621. The cubic root of 1216526122 is about 1067.5145742242.

The spelling of 1216526122 in words is "one billion, two hundred sixteen million, five hundred twenty-six thousand, one hundred twenty-two".