1321200000201 has 8 divisors (see below), whose sum is σ = 1761606105120. Its totient is φ = 880796947712.

The previous prime is 1321200000199. The next prime is 1321200000203. The reversal of 1321200000201 is 1020000021231.

It is an interprime number because it is at equal distance from previous prime (1321200000199) and next prime (1321200000203).

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 1321200000201 - 2¹ = 1321200000199 is a prime.

It is a super-2 number, since 2×1321200000201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1321200000203) 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, 589186 + ... + 1729028.

It is an arithmetic number, because the mean of its divisors is an integer number (220200763140).

Almost surely, 2^{1321200000201} is an apocalyptic number.

It is an amenable number.

1321200000201 is a deficient number, since it is larger than the sum of its proper divisors (440406104919).

1321200000201 is a wasteful number, since it uses less digits than its factorization.

1321200000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526215.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1321200000201 its reverse (1020000021231), we get a palindrome (2341200021432).

The spelling of 1321200000201 in words is "one trillion, three hundred twenty-one billion, two hundred million, two hundred one", and thus it is an aban number.