1201212000221 has 8 divisors (see below), whose sum is σ = 1213165819488. Its totient is φ = 1189259370000.

The previous prime is 1201212000203. The next prime is 1201212000229. The reversal of 1201212000221 is 1220002121021.

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 1201212000221 - 2²⁶ = 1201144891357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201212000196 and 1201212000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201212000229) 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, 1806986 + ... + 2380676.

It is an arithmetic number, because the mean of its divisors is an integer number (151645727436).

Almost surely, 2^{1201212000221} is an apocalyptic number.

It is an amenable number.

1201212000221 is a deficient number, since it is larger than the sum of its proper divisors (11953819267).

1201212000221 is a wasteful number, since it uses less digits than its factorization.

1201212000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594523.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201212000221 its reverse (1220002121021), we get a palindrome (2421214121242).

The spelling of 1201212000221 in words is "one trillion, two hundred one billion, two hundred twelve million, two hundred twenty-one", and thus it is an aban number.