2121250541 has 8 divisors (see below), whose sum is σ = 2170448160. Its totient is φ = 2072494512.

The previous prime is 2121250529. The next prime is 2121250561. The reversal of 2121250541 is 1450521212.

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 2121250541 - 2⁶ = 2121250477 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121250561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100670 + ... + 119903.

It is an arithmetic number, because the mean of its divisors is an integer number (271306020).

Almost surely, 2^2121250541 is an apocalyptic number.

It is an amenable number.

2121250541 is a deficient number, since it is larger than the sum of its proper divisors (49197619).

2121250541 is a wasteful number, since it uses less digits than its factorization.

2121250541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220795.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2121250541 is about 46057.0357383104. The cubic root of 2121250541 is about 1284.8841999742.

Adding to 2121250541 its reverse (1450521212), we get a palindrome (3571771753).

The spelling of 2121250541 in words is "two billion, one hundred twenty-one million, two hundred fifty thousand, five hundred forty-one".