2991120212 has 6 divisors (see below), whose sum is σ = 5234460378. Its totient is φ = 1495560104.

The previous prime is 2991120211. The next prime is 2991120229. The reversal of 2991120212 is 2120211992.

2991120212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2981596816 + 9523396 = 54604^2 + 3086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991120211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373890023 + ... + 373890030.

It is an arithmetic number, because the mean of its divisors is an integer number (872410063).

Almost surely, 2^2991120212 is an apocalyptic number.

It is an amenable number.

2991120212 is a deficient number, since it is larger than the sum of its proper divisors (2243340166).

2991120212 is a wasteful number, since it uses less digits than its factorization.

2991120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747780057 (or 747780055 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 2991120212 is about 54691.1346746436. The cubic root of 2991120212 is about 1440.8251784121.

The spelling of 2991120212 in words is "two billion, nine hundred ninety-one million, one hundred twenty thousand, two hundred twelve".