120111112212 has 144 divisors (see below), whose sum is σ = 360583896960. Its totient is φ = 30821430528.

The previous prime is 120111112201. The next prime is 120111112223. The reversal of 120111112212 is 212211111021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120111112201) and next prime (120111112223).

It is a junction number, because it is equal to n+sod(n) for n = 120111112191 and 120111112200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70489 + ... + 495167.

It is an arithmetic number, because the mean of its divisors is an integer number (2504054840).

Almost surely, 2^120111112212 is an apocalyptic number.

120111112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120111112212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180291948480).

120111112212 is an abundant number, since it is smaller than the sum of its proper divisors (240472784748).

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

120111112212 is a wasteful number, since it uses less digits than its factorization.

120111112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424750 (or 424741 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120111112212 its reverse (212211111021), we get a palindrome (332322223233).

The spelling of 120111112212 in words is "one hundred twenty billion, one hundred eleven million, one hundred twelve thousand, two hundred twelve".