201200012021121 has 8 divisors (see below), whose sum is σ = 275517133578624. Its totient is φ = 130508115905520.

The previous prime is 201200012021111. The next prime is 201200012021159. The reversal of 201200012021121 is 121120210002102.

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

It is not a de Polignac number, because 201200012021121 - 2⁷ = 201200012020993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201200012021121.

It is not an unprimeable number, because it can be changed into a prime (201200012021111) 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, 906306360345 + ... + 906306360566.

It is an arithmetic number, because the mean of its divisors is an integer number (34439641697328).

Almost surely, 2^{201200012021121} is an apocalyptic number.

It is an amenable number.

201200012021121 is a deficient number, since it is larger than the sum of its proper divisors (74317121557503).

201200012021121 is a wasteful number, since it uses less digits than its factorization.

201200012021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812612720951.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201200012021121 its reverse (121120210002102), we get a palindrome (322320222023223).

The spelling of 201200012021121 in words is "two hundred one trillion, two hundred billion, twelve million, twenty-one thousand, one hundred twenty-one".