2101132121 has 8 divisors (see below), whose sum is σ = 2292516864. Its totient is φ = 1909809520.

The previous prime is 2101132097. The next prime is 2101132139. The reversal of 2101132121 is 1212311012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101132121 - 2¹⁸ = 2100869977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101132096 and 2101132105.

It is not an unprimeable number, because it can be changed into a prime (2101132141) 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, 81611 + ... + 104223.

It is an arithmetic number, because the mean of its divisors is an integer number (286564608).

Almost surely, 2^2101132121 is an apocalyptic number.

It is an amenable number.

2101132121 is a deficient number, since it is larger than the sum of its proper divisors (191384743).

2101132121 is a wasteful number, since it uses less digits than its factorization.

2101132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31071.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2101132121 is about 45838.1077379946. The cubic root of 2101132121 is about 1280.8092459584.

Adding to 2101132121 its reverse (1212311012), we get a palindrome (3313443133).

The spelling of 2101132121 in words is "two billion, one hundred one million, one hundred thirty-two thousand, one hundred twenty-one".