120111203212 has 288 divisors, whose sum is σ = 296099112960. Its totient is φ = 41433638400.

The previous prime is 120111203159. The next prime is 120111203213. The reversal of 120111203212 is 212302111021.

It is a super-2 number, since 2×120111203212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120111203213) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 346141623 + ... + 346141969.

It is an arithmetic number, because the mean of its divisors is an integer number (1028121920).

Almost surely, 2^120111203212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120111203212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148049556480).

120111203212 is an abundant number, since it is smaller than the sum of its proper divisors (175987909748).

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

120111203212 is a wasteful number, since it uses less digits than its factorization.

120111203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 120111203212 its reverse (212302111021), we get a palindrome (332413314233).

It can be divided in two parts, 120111 and 203212, that added together give a palindrome (323323).

The spelling of 120111203212 in words is "one hundred twenty billion, one hundred eleven million, two hundred three thousand, two hundred twelve".