20122111202211 has 12 divisors (see below), whose sum is σ = 29850819621792. Its totient is φ = 13052180239056.

The previous prime is 20122111202203. The next prime is 20122111202233. The reversal of 20122111202211 is 11220211122102.

20122111202211 is a `hidden beast` number, since 20 + 1 + 221 + 11 + 202 + 211 = 666.

It is not a de Polignac number, because 20122111202211 - 2³ = 20122111202203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122111202201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30213379851 + ... + 30213380516.

It is an arithmetic number, because the mean of its divisors is an integer number (2487568301816).

Almost surely, 2^{20122111202211} is an apocalyptic number.

20122111202211 is a deficient number, since it is larger than the sum of its proper divisors (9728708419581).

20122111202211 is a wasteful number, since it uses less digits than its factorization.

20122111202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60426760410 (or 60426760407 counting only the distinct ones).

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

Adding to 20122111202211 its reverse (11220211122102), we get a palindrome (31342322324313).

The spelling of 20122111202211 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, two hundred two thousand, two hundred eleven".