121122100110220 has 36 divisors (see below), whose sum is σ = 279581839350912. Its totient is φ = 44044400039200.

The previous prime is 121122100110181. The next prime is 121122100110223. The reversal of 121122100110220 is 22011001221121.

It is a super-2 number, since 2×121122100110220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121122100110194 and 121122100110203.

It is not an unprimeable number, because it can be changed into a prime (121122100110223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25025224876 + ... + 25025229715.

It is an arithmetic number, because the mean of its divisors is an integer number (7766162204192).

Almost surely, 2^{121122100110220} is an apocalyptic number.

121122100110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122100110220 is an abundant number, since it is smaller than the sum of its proper divisors (158459739240692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121122100110220 is a wasteful number, since it uses less digits than its factorization.

121122100110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50050454622 (or 50050454609 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121122100110220 its reverse (22011001221121), we get a palindrome (143133101331341).

The spelling of 121122100110220 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred million, one hundred ten thousand, two hundred twenty".