201000102121 has 32 divisors (see below), whose sum is σ = 254548562688. Its totient is φ = 154487174400.

The previous prime is 201000102053. The next prime is 201000102167. The reversal of 201000102121 is 121201000102.

It is not a de Polignac number, because 201000102121 - 2⁹ = 201000101609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201000102098 and 201000102107.

It is not an unprimeable number, because it can be changed into a prime (201000102181) 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, 280810 + ... + 693436.

It is an arithmetic number, because the mean of its divisors is an integer number (7954642584).

Almost surely, 2^201000102121 is an apocalyptic number.

It is an amenable number.

201000102121 is a deficient number, since it is larger than the sum of its proper divisors (53548460567).

201000102121 is a wasteful number, since it uses less digits than its factorization.

201000102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412801.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201000102121 its reverse (121201000102), we get a palindrome (322201102223).

It can be divided in two parts, 201000102 and 121, that multiplied together give a palindrome (24321012342).

The spelling of 201000102121 in words is "two hundred one billion, one hundred two thousand, one hundred twenty-one".