2121044541 has 32 divisors (see below), whose sum is σ = 3560841216. Its totient is φ = 1090920000.

The previous prime is 2121044503. The next prime is 2121044551. The reversal of 2121044541 is 1454401212.

It is not a de Polignac number, because 2121044541 - 2⁶ = 2121044477 is a prime.

2121044541 is a modest number, since divided by 44541 gives 2121 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121044551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22125 + ... + 68786.

It is an arithmetic number, because the mean of its divisors is an integer number (111276288).

Almost surely, 2^2121044541 is an apocalyptic number.

2121044541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2121044541 is a deficient number, since it is larger than the sum of its proper divisors (1439796675).

2121044541 is a wasteful number, since it uses less digits than its factorization.

2121044541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91033.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 2121044541 is about 46054.7993264546. The cubic root of 2121044541 is about 1284.8426058440.

Adding to 2121044541 its reverse (1454401212), we get a palindrome (3575445753).

The spelling of 2121044541 in words is "two billion, one hundred twenty-one million, forty-four thousand, five hundred forty-one".