120121210212 has 24 divisors (see below), whose sum is σ = 280329100800. Its totient is φ = 40033792416.

The previous prime is 120121210177. The next prime is 120121210217. The reversal of 120121210212 is 212012121021.

It is a junction number, because it is equal to n+sod(n) for n = 120121210191 and 120121210200.

It is not an unprimeable number, because it can be changed into a prime (120121210217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750387 + ... + 896282.

It is an arithmetic number, because the mean of its divisors is an integer number (11680379200).

Almost surely, 2^120121210212 is an apocalyptic number.

120121210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120121210212 is an abundant number, since it is smaller than the sum of its proper divisors (160207890588).

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

120121210212 is a wasteful number, since it uses less digits than its factorization.

120121210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652755 (or 1652753 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120121210212 its reverse (212012121021), we get a palindrome (332133331233).

It can be divided in two parts, 12012121021 and 2, that multiplied together give a palindrome (24024242042).

The spelling of 120121210212 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred ten thousand, two hundred twelve".