1212322231101 has 8 divisors (see below), whose sum is σ = 1624090446304. Its totient is φ = 804384418320.

The previous prime is 1212322231093. The next prime is 1212322231111. The reversal of 1212322231101 is 1011322232121.

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

It is not a de Polignac number, because 1212322231101 - 2³ = 1212322231093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212322231111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 957599866 + ... + 957601131.

It is an arithmetic number, because the mean of its divisors is an integer number (203011305788).

Almost surely, 2^{1212322231101} is an apocalyptic number.

It is an amenable number.

1212322231101 is a deficient number, since it is larger than the sum of its proper divisors (411768215203).

1212322231101 is a wasteful number, since it uses less digits than its factorization.

1212322231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915201211.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1212322231101 its reverse (1011322232121), we get a palindrome (2223644463222).

The spelling of 1212322231101 in words is "one trillion, two hundred twelve billion, three hundred twenty-two million, two hundred thirty-one thousand, one hundred one".