12101212221043 has 8 divisors (see below), whose sum is σ = 13280372259840. Its totient is φ = 10935227155080.

The previous prime is 12101212220893. The next prime is 12101212221071. The reversal of 12101212221043 is 34012221210121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101212221043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101212228043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3293741283 + ... + 3293744956.

It is an arithmetic number, because the mean of its divisors is an integer number (1660046532480).

Almost surely, 2^{12101212221043} is an apocalyptic number.

12101212221043 is a deficient number, since it is larger than the sum of its proper divisors (1179160038797).

12101212221043 is a wasteful number, since it uses less digits than its factorization.

12101212221043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6587486417.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12101212221043 its reverse (34012221210121), we get a palindrome (46113433431164).

The spelling of 12101212221043 in words is "twelve trillion, one hundred one billion, two hundred twelve million, two hundred twenty-one thousand, forty-three".