1212231100011 has 8 divisors (see below), whose sum is σ = 1659992137104. Its totient is φ = 786312064800.

The previous prime is 1212231100009. The next prime is 1212231100021. The reversal of 1212231100011 is 1100011322121.

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

It is not a de Polignac number, because 1212231100011 - 2¹ = 1212231100009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212231100001) 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, 5460500340 + ... + 5460500561.

It is an arithmetic number, because the mean of its divisors is an integer number (207499017138).

Almost surely, 2^{1212231100011} is an apocalyptic number.

1212231100011 is a deficient number, since it is larger than the sum of its proper divisors (447761037093).

1212231100011 is a wasteful number, since it uses less digits than its factorization.

1212231100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10921000941.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1212231100011 its reverse (1100011322121), we get a palindrome (2312242422132).

The spelling of 1212231100011 in words is "one trillion, two hundred twelve billion, two hundred thirty-one million, one hundred thousand, eleven".