21120222020211 has 20 divisors (see below), whose sum is σ = 31862337156144. Its totient is φ = 13940740602000.

The previous prime is 21120222020201. The next prime is 21120222020221. The reversal of 21120222020211 is 11202022202112.

It is a happy number.

21120222020211 is a `hidden beast` number, since 2 + 11 + 202 + 220 + 20 + 211 = 666.

It is an interprime number because it is at equal distance from previous prime (21120222020201) and next prime (21120222020221).

It is not a de Polignac number, because 21120222020211 - 2⁷ = 21120222020083 is a prime.

It is a super-2 number, since 2×21120222020211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21120222020201) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1290801135 + ... + 1290817496.

Almost surely, 2^{21120222020211} is an apocalyptic number.

21120222020211 is a deficient number, since it is larger than the sum of its proper divisors (10742115135933).

21120222020211 is a wasteful number, since it uses less digits than its factorization.

21120222020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581618744 (or 2581618735 counting only the distinct ones).

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

Adding to 21120222020211 its reverse (11202022202112), we get a palindrome (32322244222323).

The spelling of 21120222020211 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, twenty thousand, two hundred eleven".