1216525444102 has 8 divisors (see below), whose sum is σ = 1825922284200. Its totient is φ = 607884682704.

The previous prime is 1216525444093. The next prime is 1216525444223. The reversal of 1216525444102 is 2014445256121.

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

It is a super-2 number, since 2×1216525444102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189015652 + ... + 189022087.

It is an arithmetic number, because the mean of its divisors is an integer number (228240285525).

Almost surely, 2^{1216525444102} is an apocalyptic number.

1216525444102 is a deficient number, since it is larger than the sum of its proper divisors (609396840098).

1216525444102 is a wasteful number, since it uses less digits than its factorization.

1216525444102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378039350.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 1216525444102 in words is "one trillion, two hundred sixteen billion, five hundred twenty-five million, four hundred forty-four thousand, one hundred two".