21112021041122 has 32 divisors (see below), whose sum is σ = 34557592101120. Its totient is φ = 9593415861120.

The previous prime is 21112021041121. The next prime is 21112021041179. The reversal of 21112021041122 is 22114012021112.

It is a junction number, because it is equal to n+sod(n) for n = 21112021041094 and 21112021041103.

It is not an unprimeable number, because it can be changed into a prime (21112021041121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821094958 + ... + 1821106550.

It is an arithmetic number, because the mean of its divisors is an integer number (1079924753160).

Almost surely, 2^{21112021041122} is an apocalyptic number.

21112021041122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21112021041122 is a deficient number, since it is larger than the sum of its proper divisors (13445571059998).

21112021041122 is a wasteful number, since it uses less digits than its factorization.

21112021041122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29978.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 21112021041122 its reverse (22114012021112), we get a palindrome (43226033062234).

The spelling of 21112021041122 in words is "twenty-one trillion, one hundred twelve billion, twenty-one million, forty-one thousand, one hundred twenty-two".