21222020110011 has 8 divisors (see below), whose sum is σ = 32338316358144. Its totient is φ = 12126868634280.

The previous prime is 21222020110009. The next prime is 21222020110043. The reversal of 21222020110011 is 11001102022212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21222020110011 - 2¹ = 21222020110009 is a prime.

It is a super-2 number, since 2×21222020110011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21222020112011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505286193075 + ... + 505286193116.

It is an arithmetic number, because the mean of its divisors is an integer number (4042289544768).

Almost surely, 2^{21222020110011} is an apocalyptic number.

21222020110011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21222020110011 is a deficient number, since it is larger than the sum of its proper divisors (11116296248133).

21222020110011 is a wasteful number, since it uses less digits than its factorization.

21222020110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010572386201.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21222020110011 its reverse (11001102022212), we get a palindrome (32223122132223).

The spelling of 21222020110011 in words is "twenty-one trillion, two hundred twenty-two billion, twenty million, one hundred ten thousand, eleven".