201212010010121 has 32 divisors (see below), whose sum is σ = 224852423040000. Its totient is φ = 178508475552960.

The previous prime is 201212010010087. The next prime is 201212010010189. The reversal of 201212010010121 is 121010010212102.

It is a cyclic number.

It is not a de Polignac number, because 201212010010121 - 2²⁶ = 201211942901257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201212010010096 and 201212010010105.

It is not an unprimeable number, because it can be changed into a prime (201212010018121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 965965460 + ... + 966173738.

It is an arithmetic number, because the mean of its divisors is an integer number (7026638220000).

Almost surely, 2^{201212010010121} is an apocalyptic number.

It is an amenable number.

201212010010121 is a deficient number, since it is larger than the sum of its proper divisors (23640413029879).

201212010010121 is a wasteful number, since it uses less digits than its factorization.

201212010010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219197.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201212010010121 its reverse (121010010212102), we get a palindrome (322222020222223).

The spelling of 201212010010121 in words is "two hundred one trillion, two hundred twelve billion, ten million, ten thousand, one hundred twenty-one".