1212012112201 has 8 divisors (see below), whose sum is σ = 1322226854208. Its totient is φ = 1101802674000.

The previous prime is 1212012112187. The next prime is 1212012112237. The reversal of 1212012112201 is 1022112102121.

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-1212012112201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212012112501) 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, 840405 + ... + 1769266.

It is an arithmetic number, because the mean of its divisors is an integer number (165278356776).

Almost surely, 2^{1212012112201} is an apocalyptic number.

1212012112201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212012112201 is a deficient number, since it is larger than the sum of its proper divisors (110214742007).

1212012112201 is a wasteful number, since it uses less digits than its factorization.

1212012112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651903.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212012112201 its reverse (1022112102121), we get a palindrome (2234124214322).

The spelling of 1212012112201 in words is "one trillion, two hundred twelve billion, twelve million, one hundred twelve thousand, two hundred one".