20002122221211 has 24 divisors (see below), whose sum is σ = 31122842821616. Its totient is φ = 12305663156160.

The previous prime is 20002122221189. The next prime is 20002122221269. The reversal of 20002122221211 is 11212222120002.

It is a happy number.

20002122221211 is a `hidden beast` number, since 20 + 0 + 0 + 212 + 2 + 221 + 211 = 666.

It is not a de Polignac number, because 20002122221211 - 2⁷ = 20002122221083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002122221111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22726960 + ... + 23590653.

Almost surely, 2^{20002122221211} is an apocalyptic number.

20002122221211 is a deficient number, since it is larger than the sum of its proper divisors (11120720600405).

20002122221211 is a wasteful number, since it uses less digits than its factorization.

20002122221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46321323 (or 46321320 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20002122221211 its reverse (11212222120002), we get a palindrome (31214344341213).

The spelling of 20002122221211 in words is "twenty trillion, two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred eleven".