2121101011 has 8 divisors (see below), whose sum is σ = 2180864448. Its totient is φ = 2061720000.

The previous prime is 2121100997. The next prime is 2121101029. The reversal of 2121101011 is 1101011212.

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 2121101011 - 2²⁹ = 1584230099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121101071) 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, 84340 + ... + 106561.

It is an arithmetic number, because the mean of its divisors is an integer number (272608056).

Almost surely, 2^2121101011 is an apocalyptic number.

2121101011 is a deficient number, since it is larger than the sum of its proper divisors (59763437).

2121101011 is a wasteful number, since it uses less digits than its factorization.

2121101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191213.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 2121101011 is about 46055.4123963731. The cubic root of 2121101011 is about 1284.8540081534.

Adding to 2121101011 its reverse (1101011212), we get a palindrome (3222112223).

It can be divided in two parts, 212 and 1101011, that multiplied together give a palindrome (233414332).

The spelling of 2121101011 in words is "two billion, one hundred twenty-one million, one hundred one thousand, eleven".