2121151101 has 8 divisors (see below), whose sum is σ = 2830145760. Its totient is φ = 1413128592.

The previous prime is 2121151091. The next prime is 2121151117. The reversal of 2121151101 is 1011511212.

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

It is not a de Polignac number, because 2121151101 - 2⁵ = 2121151069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121151121) 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, 237930 + ... + 246683.

It is an arithmetic number, because the mean of its divisors is an integer number (353768220).

Almost surely, 2^2121151101 is an apocalyptic number.

It is an amenable number.

2121151101 is a deficient number, since it is larger than the sum of its proper divisors (708994659).

2121151101 is a wasteful number, since it uses less digits than its factorization.

2121151101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486075.

The product of its (nonzero) digits is 20, while the sum is 15.

The square root of 2121151101 is about 46055.9561946118. The cubic root of 2121151101 is about 1284.8641220565.

Adding to 2121151101 its reverse (1011511212), we get a palindrome (3132662313).

The spelling of 2121151101 in words is "two billion, one hundred twenty-one million, one hundred fifty-one thousand, one hundred one".