121003212 has 48 divisors (see below), whose sum is σ = 326132352. Its totient is φ = 34510080.

The previous prime is 121003123. The next prime is 121003231. The reversal of 121003212 is 212300121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24718 + ... + 29205.

It is an arithmetic number, because the mean of its divisors is an integer number (6794424).

Almost surely, 2^121003212 is an apocalyptic number.

121003212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121003212 is an abundant number, since it is smaller than the sum of its proper divisors (205129140).

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

121003212 is a wasteful number, since it uses less digits than its factorization.

121003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53958 (or 53956 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 121003212 is about 11000.1459990311. The cubic root of 121003212 is about 494.6131208241.

Adding to 121003212 its reverse (212300121), we get a palindrome (333303333).

The spelling of 121003212 in words is "one hundred twenty-one million, three thousand, two hundred twelve".