12155222310514 has 4 divisors (see below), whose sum is σ = 18232833465774. Its totient is φ = 6077611155256.

The previous prime is 12155222310457. The next prime is 12155222310577. The reversal of 12155222310514 is 41501322255121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11278293072489 + 876929238025 = 3358317^2 + 936445^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12155222310514.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3038805577627 + ... + 3038805577630.

Almost surely, 2^{12155222310514} is an apocalyptic number.

12155222310514 is a deficient number, since it is larger than the sum of its proper divisors (6077611155260).

12155222310514 is an equidigital number, since it uses as much as digits as its factorization.

12155222310514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6077611155259.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 12155222310514 its reverse (41501322255121), we get a palindrome (53656544565635).

The spelling of 12155222310514 in words is "twelve trillion, one hundred fifty-five billion, two hundred twenty-two million, three hundred ten thousand, five hundred fourteen".