2101212212 has 12 divisors (see below), whose sum is σ = 4011405216. Its totient is φ = 955096440.

The previous prime is 2101212143. The next prime is 2101212229. The reversal of 2101212212 is 2122121012.

It is a congruent number.

It is an unprimeable number.

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, 23877368 + ... + 23877455.

It is an arithmetic number, because the mean of its divisors is an integer number (334283768).

Almost surely, 2^2101212212 is an apocalyptic number.

2101212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101212212 is a deficient number, since it is larger than the sum of its proper divisors (1910193004).

2101212212 is a wasteful number, since it uses less digits than its factorization.

2101212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47754838 (or 47754836 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2101212212 is about 45838.9813586646. The cubic root of 2101212212 is about 1280.8255197232.

Adding to 2101212212 its reverse (2122121012), we get a palindrome (4223333224).

The spelling of 2101212212 in words is "two billion, one hundred one million, two hundred twelve thousand, two hundred twelve".