1212112021201 has 8 divisors (see below), whose sum is σ = 1216998747104. Its totient is φ = 1207229546880.

The previous prime is 1212112021189. The next prime is 1212112021223. The reversal of 1212112021201 is 1021202112121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212112021201 - 2³¹ = 1209964537553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212112021271) 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, 490935 + ... + 1632556.

It is an arithmetic number, because the mean of its divisors is an integer number (152124843388).

Almost surely, 2^{1212112021201} is an apocalyptic number.

It is an amenable number.

1212112021201 is a deficient number, since it is larger than the sum of its proper divisors (4886725903).

1212112021201 is a wasteful number, since it uses less digits than its factorization.

1212112021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125791.

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

Adding to 1212112021201 its reverse (1021202112121), we get a palindrome (2233314133322).

It can be divided in two parts, 121211 and 2021201, that added together give a palindrome (2142412).

The spelling of 1212112021201 in words is "one trillion, two hundred twelve billion, one hundred twelve million, twenty-one thousand, two hundred one".