121212301122 has 64 divisors (see below), whose sum is σ = 297475873920. Its totient is φ = 36730985760.

The previous prime is 121212301043. The next prime is 121212301163. The reversal of 121212301122 is 221103212121.

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 = 121212301095 and 121212301104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211523 + ... + 1307750.

It is an arithmetic number, because the mean of its divisors is an integer number (4648060530).

Almost surely, 2^121212301122 is an apocalyptic number.

121212301122 is an abundant number, since it is smaller than the sum of its proper divisors (176263572798).

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

121212301122 is an equidigital number, since it uses as much as digits as its factorization.

121212301122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519307 (or 2519289 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121212301122 its reverse (221103212121), we get a palindrome (342315513243).

The spelling of 121212301122 in words is "one hundred twenty-one billion, two hundred twelve million, three hundred one thousand, one hundred twenty-two".