212011002291 has 16 divisors (see below), whose sum is σ = 308550953088. Its totient is φ = 128420136000.

The previous prime is 212011002263. The next prime is 212011002311. The reversal of 212011002291 is 192200110212.

It is not a de Polignac number, because 212011002291 - 2⁹ = 212011001779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212011002241) 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, 1724181 + ... + 1843046.

It is an arithmetic number, because the mean of its divisors is an integer number (19284434568).

Almost surely, 2^212011002291 is an apocalyptic number.

212011002291 is a deficient number, since it is larger than the sum of its proper divisors (96539950797).

212011002291 is a wasteful number, since it uses less digits than its factorization.

212011002291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569042.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 212011002291 in words is "two hundred twelve billion, eleven million, two thousand, two hundred ninety-one".