211120221212012 has 24 divisors (see below), whose sum is σ = 424007138849280. Its totient is φ = 90101516999760.

The previous prime is 211120221211973. The next prime is 211120221212023. The reversal of 211120221212012 is 210212122021112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15774068414 + ... + 15774081797.

It is an arithmetic number, because the mean of its divisors is an integer number (17666964118720).

Almost surely, 2^{211120221212012} is an apocalyptic number.

It is an amenable number.

211120221212012 is an abundant number, since it is smaller than the sum of its proper divisors (212886917637268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211120221212012 is a wasteful number, since it uses less digits than its factorization.

211120221212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31548150461 (or 31548150459 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211120221212012 its reverse (210212122021112), we get a palindrome (421332343233124).

The spelling of 211120221212012 in words is "two hundred eleven trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twelve thousand, twelve".