2112021221211 has 32 divisors (see below), whose sum is σ = 3444682982400. Its totient is φ = 1268269604640.

The previous prime is 2112021221183. The next prime is 2112021221227. The reversal of 2112021221211 is 1121221202112.

2112021221211 is a `hidden beast` number, since 211 + 2 + 0 + 21 + 221 + 211 = 666.

It is not a de Polignac number, because 2112021221211 - 2⁷ = 2112021221083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2112021221231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32587731 + ... + 32652476.

It is an arithmetic number, because the mean of its divisors is an integer number (107646343200).

Almost surely, 2^{2112021221211} is an apocalyptic number.

2112021221211 is a deficient number, since it is larger than the sum of its proper divisors (1332661761189).

2112021221211 is a wasteful number, since it uses less digits than its factorization.

2112021221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65240336 (or 65240330 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2112021221211 its reverse (1121221202112), we get a palindrome (3233242423323).

The spelling of 2112021221211 in words is "two trillion, one hundred twelve billion, twenty-one million, two hundred twenty-one thousand, two hundred eleven".