121120212 has 24 divisors (see below), whose sum is σ = 297488800. Its totient is φ = 38248416.

The previous prime is 121120199. The next prime is 121120229. The reversal of 121120212 is 212021121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265387 + ... + 265842.

Almost surely, 2^121120212 is an apocalyptic number.

121120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121120212 is an abundant number, since it is smaller than the sum of its proper divisors (176368588).

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

121120212 is a wasteful number, since it uses less digits than its factorization.

121120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531255 (or 531253 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121120212 is about 11005.4628253427. The cubic root of 121120212 is about 494.7724859971.

Adding to 121120212 its reverse (212021121), we get a palindrome (333141333).

Subtracting 121120212 from its reverse (212021121), we obtain a palindrome (90900909).

The spelling of 121120212 in words is "one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".