1200201001221 has 8 divisors (see below), whose sum is σ = 1669844871360. Its totient is φ = 765345565952.

The previous prime is 1200201001211. The next prime is 1200201001253. The reversal of 1200201001221 is 1221001020021.

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 1200201001221 - 2⁹ = 1200201000709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200201001197 and 1200201001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200201001211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8697108636 + ... + 8697108773.

It is an arithmetic number, because the mean of its divisors is an integer number (208730608920).

Almost surely, 2^{1200201001221} is an apocalyptic number.

It is an amenable number.

1200201001221 is a deficient number, since it is larger than the sum of its proper divisors (469643870139).

1200201001221 is a wasteful number, since it uses less digits than its factorization.

1200201001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17394217435.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1200201001221 its reverse (1221001020021), we get a palindrome (2421202021242).

The spelling of 1200201001221 in words is "one trillion, two hundred billion, two hundred one million, one thousand, two hundred twenty-one".