121112121330 has 48 divisors (see below), whose sum is σ = 314911980864. Its totient is φ = 32294466720.

The previous prime is 121112121307. The next prime is 121112121353. The reversal of 121112121330 is 33121211121.

121112121330 is a `hidden beast` number, since 1 + 211 + 1 + 2 + 121 + 330 = 666.

It is an interprime number because it is at equal distance from previous prime (121112121307) and next prime (121112121353).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1759665 + ... + 1827195.

It is an arithmetic number, because the mean of its divisors is an integer number (6560666268).

Almost surely, 2^121112121330 is an apocalyptic number.

121112121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121112121330 is an abundant number, since it is smaller than the sum of its proper divisors (193799859534).

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

121112121330 is a wasteful number, since it uses less digits than its factorization.

121112121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87471 (or 87468 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121112121330 its reverse (33121211121), we get a palindrome (154233332451).

The spelling of 121112121330 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred twenty-one thousand, three hundred thirty".