201000201002121 has 64 divisors (see below), whose sum is σ = 281569567104000. Its totient is φ = 127432611072000.

The previous prime is 201000201002113. The next prime is 201000201002129. The reversal of 201000201002121 is 121200102000102.

It is an interprime number because it is at equal distance from previous prime (201000201002113) and next prime (201000201002129).

It is not a de Polignac number, because 201000201002121 - 2³ = 201000201002113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201000201002097 and 201000201002106.

It is not an unprimeable number, because it can be changed into a prime (201000201002129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 342221115 + ... + 342807951.

It is an arithmetic number, because the mean of its divisors is an integer number (4399524486000).

Almost surely, 2^{201000201002121} is an apocalyptic number.

It is an amenable number.

201000201002121 is a deficient number, since it is larger than the sum of its proper divisors (80569366101879).

201000201002121 is a wasteful number, since it uses less digits than its factorization.

201000201002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587410.

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

Adding to 201000201002121 its reverse (121200102000102), we get a palindrome (322200303002223).

The spelling of 201000201002121 in words is "two hundred one trillion, two hundred one million, two thousand, one hundred twenty-one".