121110120021222 has 32 divisors (see below), whose sum is σ = 274211592507360. Its totient is φ = 39608341138080.

The previous prime is 121110120021203. The next prime is 121110120021229. The reversal of 121110120021222 is 222120021011121.

121110120021222 is a `hidden beast` number, since 1 + 211 + 10 + 1 + 200 + 21 + 222 = 666.

It is a super-2 number, since 2×121110120021222² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121110120021195 and 121110120021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110120021229) 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, 21158299029 + ... + 21158304752.

It is an arithmetic number, because the mean of its divisors is an integer number (8569112265855).

Almost surely, 2^{121110120021222} is an apocalyptic number.

121110120021222 is an abundant number, since it is smaller than the sum of its proper divisors (153101472486138).

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

121110120021222 is a wasteful number, since it uses less digits than its factorization.

121110120021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42316603845 (or 42316603839 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121110120021222 its reverse (222120021011121), we get a palindrome (343230141032343).

The spelling of 121110120021222 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".