21121120011122 has 16 divisors (see below), whose sum is σ = 31727626560000. Its totient is φ = 10545255589440.

The previous prime is 21121120011071. The next prime is 21121120011149. The reversal of 21121120011122 is 22111002112112.

It is a super-2 number, since 2×21121120011122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21121120011122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034879 + ... + 6581277.

It is an arithmetic number, because the mean of its divisors is an integer number (1982976660000).

Almost surely, 2^{21121120011122} is an apocalyptic number.

21121120011122 is a deficient number, since it is larger than the sum of its proper divisors (10606506548878).

21121120011122 is a wasteful number, since it uses less digits than its factorization.

21121120011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549161.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 21121120011122 its reverse (22111002112112), we get a palindrome (43232122123234).

The spelling of 21121120011122 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred twenty million, eleven thousand, one hundred twenty-two".