21121110330122 has 32 divisors (see below), whose sum is σ = 35419108322304. Its totient is φ = 9362557612800.

The previous prime is 21121110330071. The next prime is 21121110330157. The reversal of 21121110330122 is 22103301112112.

It is a super-2 number, since 2×21121110330122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21121110330094 and 21121110330103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2503658 + ... + 6964949.

It is an arithmetic number, because the mean of its divisors is an integer number (1106847135072).

Almost surely, 2^{21121110330122} is an apocalyptic number.

21121110330122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21121110330122 is a deficient number, since it is larger than the sum of its proper divisors (14297997992182).

21121110330122 is a wasteful number, since it uses less digits than its factorization.

21121110330122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471134.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21121110330122 its reverse (22103301112112), we get a palindrome (43224411442234).

The spelling of 21121110330122 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred ten million, three hundred thirty thousand, one hundred twenty-two".