21121110011122 has 8 divisors (see below), whose sum is σ = 34561816381872. Its totient is φ = 9600504550500.

The previous prime is 21121110011081. The next prime is 21121110011129. The reversal of 21121110011122 is 22111001112112.

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

It is a super-2 number, since 2×21121110011122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21121110011096 and 21121110011105.

It is not an unprimeable number, because it can be changed into a prime (21121110011129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480025227504 + ... + 480025227547.

It is an arithmetic number, because the mean of its divisors is an integer number (4320227047734).

Almost surely, 2^{21121110011122} is an apocalyptic number.

21121110011122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21121110011122 is a deficient number, since it is larger than the sum of its proper divisors (13440706370750).

21121110011122 is a wasteful number, since it uses less digits than its factorization.

21121110011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960050455064.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 21121110011122 its reverse (22111001112112), we get a palindrome (43232111123234).

The spelling of 21121110011122 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred ten million, eleven thousand, one hundred twenty-two".