1201221000201 has 8 divisors (see below), whose sum is σ = 1602794522880. Its totient is φ = 800230738832.

The previous prime is 1201221000191. The next prime is 1201221000251. The reversal of 1201221000201 is 1020001221021.

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 1201221000201 - 2¹⁹ = 1201220475913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201221000251) 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, 145810521 + ... + 145818758.

It is an arithmetic number, because the mean of its divisors is an integer number (200349315360).

Almost surely, 2^{1201221000201} is an apocalyptic number.

It is an amenable number.

1201221000201 is a deficient number, since it is larger than the sum of its proper divisors (401573522679).

1201221000201 is a wasteful number, since it uses less digits than its factorization.

1201221000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291630655.

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

Adding to 1201221000201 its reverse (1020001221021), we get a palindrome (2221222221222).

The spelling of 1201221000201 in words is "one trillion, two hundred one billion, two hundred twenty-one million, two hundred one", and thus it is an aban number.