2102001121 has 16 divisors (see below), whose sum is σ = 2349864000. Its totient is φ = 1863731520.

The previous prime is 2102001067. The next prime is 2102001137. The reversal of 2102001121 is 1211002012.

It is a cyclic number.

It is not a de Polignac number, because 2102001121 - 2¹¹ = 2101999073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102001098 and 2102001107.

It is not an unprimeable number, because it can be changed into a prime (2102061121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362755 + ... + 368503.

It is an arithmetic number, because the mean of its divisors is an integer number (146866500).

Almost surely, 2^2102001121 is an apocalyptic number.

It is an amenable number.

2102001121 is a deficient number, since it is larger than the sum of its proper divisors (247862879).

2102001121 is a wasteful number, since it uses less digits than its factorization.

2102001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576.

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

The square root of 2102001121 is about 45847.5857706815. The cubic root of 2102001121 is about 1280.9857967831.

Adding to 2102001121 its reverse (1211002012), we get a palindrome (3313003133).

The spelling of 2102001121 in words is "two billion, one hundred two million, one thousand, one hundred twenty-one".