1212101211201 has 8 divisors (see below), whose sum is σ = 1668268333824. Its totient is φ = 782000781360.

The previous prime is 1212101211143. The next prime is 1212101211271. The reversal of 1212101211201 is 1021121012121.

It is a happy number.

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

It is not a de Polignac number, because 1212101211201 - 2¹¹ = 1212101209153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212101211271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6516673086 + ... + 6516673271.

It is an arithmetic number, because the mean of its divisors is an integer number (208533541728).

Almost surely, 2^{1212101211201} is an apocalyptic number.

It is an amenable number.

1212101211201 is a deficient number, since it is larger than the sum of its proper divisors (456167122623).

1212101211201 is a wasteful number, since it uses less digits than its factorization.

1212101211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13033346391.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1212101211201 its reverse (1021121012121), we get a palindrome (2233222223322).

The spelling of 1212101211201 in words is "one trillion, two hundred twelve billion, one hundred one million, two hundred eleven thousand, two hundred one".