201200012121 has 8 divisors (see below), whose sum is σ = 268280488000. Its totient is φ = 134126438832.

The previous prime is 201200012089. The next prime is 201200012147. The reversal of 201200012121 is 121210002102.

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

It is not a de Polignac number, because 201200012121 - 2⁵ = 201200012089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201200012097 and 201200012106.

It is not an unprimeable number, because it can be changed into a prime (201200012171) 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, 1657246 + ... + 1774503.

It is an arithmetic number, because the mean of its divisors is an integer number (33535061000).

Almost surely, 2^201200012121 is an apocalyptic number.

It is an amenable number.

201200012121 is a deficient number, since it is larger than the sum of its proper divisors (67080475879).

201200012121 is a wasteful number, since it uses less digits than its factorization.

201200012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451295.

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

Adding to 201200012121 its reverse (121210002102), we get a palindrome (322410014223).

The spelling of 201200012121 in words is "two hundred one billion, two hundred million, twelve thousand, one hundred twenty-one".