1201212001211 has 8 divisors (see below), whose sum is σ = 1272508457760. Its totient is φ = 1129986314368.

The previous prime is 1201212001163. The next prime is 1201212001237. The reversal of 1201212001211 is 1121002121021.

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-1201212001211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201212051211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17657471 + ... + 17725368.

It is an arithmetic number, because the mean of its divisors is an integer number (159063557220).

Almost surely, 2^{1201212001211} is an apocalyptic number.

1201212001211 is a deficient number, since it is larger than the sum of its proper divisors (71296456549).

1201212001211 is a wasteful number, since it uses less digits than its factorization.

1201212001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35384853.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201212001211 its reverse (1121002121021), we get a palindrome (2322214122232).

The spelling of 1201212001211 in words is "one trillion, two hundred one billion, two hundred twelve million, one thousand, two hundred eleven".