1212112112201 has 8 divisors (see below), whose sum is σ = 1220119415904. Its totient is φ = 1204111772640.

The previous prime is 1212112112179. The next prime is 1212112112207. The reversal of 1212112112201 is 1022112112121.

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 1212112112201 - 2²² = 1212107917897 is a prime.

It is a super-3 number, since 3×1212112112201³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212112112201.

It is not an unprimeable number, because it can be changed into a prime (1212112112207) 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, 1391555 + ... + 2088216.

It is an arithmetic number, because the mean of its divisors is an integer number (152514926988).

Almost surely, 2^{1212112112201} is an apocalyptic number.

It is an amenable number.

1212112112201 is a deficient number, since it is larger than the sum of its proper divisors (8007303703).

1212112112201 is a wasteful number, since it uses less digits than its factorization.

1212112112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482071.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1212112112201 its reverse (1022112112121), we get a palindrome (2234224224322).

The spelling of 1212112112201 in words is "one trillion, two hundred twelve billion, one hundred twelve million, one hundred twelve thousand, two hundred one".