1216345102242 has 32 divisors (see below), whose sum is σ = 2512959590400. Its totient is φ = 392088839760.

The previous prime is 1216345102171. The next prime is 1216345102331. The reversal of 1216345102242 is 2422015436121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2076988 + ... + 2597415.

It is an arithmetic number, because the mean of its divisors is an integer number (78529987200).

Almost surely, 2^{1216345102242} is an apocalyptic number.

1216345102242 is an abundant number, since it is smaller than the sum of its proper divisors (1296614488158).

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

1216345102242 is a wasteful number, since it uses less digits than its factorization.

1216345102242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675838.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 1216345102242 in words is "one trillion, two hundred sixteen billion, three hundred forty-five million, one hundred two thousand, two hundred forty-two".