2101212244 has 12 divisors (see below), whose sum is σ = 3695788404. Its totient is φ = 1045272704.

The previous prime is 2101212241. The next prime is 2101212247. The reversal of 2101212244 is 4422121012.

It is an interprime number because it is at equal distance from previous prime (2101212241) and next prime (2101212247).

It can be written as a sum of positive squares in 2 ways, for example, as 2054808900 + 46403344 = 45330^2 + 6812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101212241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332469 + ... + 1334044.

It is an arithmetic number, because the mean of its divisors is an integer number (307982367).

Almost surely, 2^2101212244 is an apocalyptic number.

It is an amenable number.

2101212244 is a deficient number, since it is larger than the sum of its proper divisors (1594576160).

2101212244 is a wasteful number, since it uses less digits than its factorization.

2101212244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666714 (or 2666712 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2101212244 is about 45838.9817077125. The cubic root of 2101212244 is about 1280.8255262252.

Adding to 2101212244 its reverse (4422121012), we get a palindrome (6523333256).

The spelling of 2101212244 in words is "two billion, one hundred one million, two hundred twelve thousand, two hundred forty-four".