2101212441 has 16 divisors (see below), whose sum is σ = 3128716800. Its totient is φ = 1393694064.

The previous prime is 2101212437. The next prime is 2101212473. The reversal of 2101212441 is 1442121012.

2101212441 is a `hidden beast` number, since 2 + 10 + 1 + 212 + 441 = 666.

It is not a de Polignac number, because 2101212441 - 2² = 2101212437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101212041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192201 + ... + 202838.

It is an arithmetic number, because the mean of its divisors is an integer number (195544800).

Almost surely, 2^2101212441 is an apocalyptic number.

It is an amenable number.

2101212441 is a deficient number, since it is larger than the sum of its proper divisors (1027504359).

2101212441 is a wasteful number, since it uses less digits than its factorization.

2101212441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395245 (or 395239 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2101212441 is about 45838.9838565385. The cubic root of 2101212441 is about 1280.8255662533.

Adding to 2101212441 its reverse (1442121012), we get a palindrome (3543333453).

The spelling of 2101212441 in words is "two billion, one hundred one million, two hundred twelve thousand, four hundred forty-one".