1200201230121 has 8 divisors (see below), whose sum is σ = 1600414507200. Its totient is φ = 800061053232.

The previous prime is 1200201230113. The next prime is 1200201230141. The reversal of 1200201230121 is 1210321020021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200201230121 - 2³ = 1200201230113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200201230121.

It is not an unprimeable number, because it can be changed into a prime (1200201230141) 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, 18236725 + ... + 18302418.

It is an arithmetic number, because the mean of its divisors is an integer number (200051813400).

Almost surely, 2^{1200201230121} is an apocalyptic number.

It is an amenable number.

1200201230121 is a deficient number, since it is larger than the sum of its proper divisors (400213277079).

1200201230121 is a wasteful number, since it uses less digits than its factorization.

1200201230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36550095.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1200201230121 its reverse (1210321020021), we get a palindrome (2410522250142).

The spelling of 1200201230121 in words is "one trillion, two hundred billion, two hundred one million, two hundred thirty thousand, one hundred twenty-one".