121120112212122 has 48 divisors (see below), whose sum is σ = 257330000344032. Its totient is φ = 37998149172480.

The previous prime is 121120112212117. The next prime is 121120112212123. The reversal of 121120112212122 is 221212211021121.

It is not an unprimeable number, because it can be changed into a prime (121120112212123) 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 23 ways as a sum of consecutive naturals, for example, 291470248 + ... + 291885500.

It is an arithmetic number, because the mean of its divisors is an integer number (5361041673834).

Almost surely, 2^{121120112212122} is an apocalyptic number.

121120112212122 is an abundant number, since it is smaller than the sum of its proper divisors (136209888131910).

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

121120112212122 is a wasteful number, since it uses less digits than its factorization.

121120112212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583503 (or 583486 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121120112212122 its reverse (221212211021121), we get a palindrome (342332323233243).

The spelling of 121120112212122 in words is "one hundred twenty-one trillion, one hundred twenty billion, one hundred twelve million, two hundred twelve thousand, one hundred twenty-two".