121030212 has 24 divisors (see below), whose sum is σ = 285980800. Its totient is φ = 39832416.

The previous prime is 121030193. The next prime is 121030213. The reversal of 121030212 is 212030121.

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

It is not an unprimeable number, because it can be changed into a prime (121030213) by changing a digit.

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, 62887 + ... + 64782.

Almost surely, 2^121030212 is an apocalyptic number.

121030212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121030212 is an abundant number, since it is smaller than the sum of its proper divisors (164950588).

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

121030212 is a wasteful number, since it uses less digits than its factorization.

121030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127755 (or 127753 counting only the distinct ones).

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

The square root of 121030212 is about 11001.3731870162. The cubic root of 121030212 is about 494.6499065173.

Adding to 121030212 its reverse (212030121), we get a palindrome (333060333).

Subtracting 121030212 from its reverse (212030121), we obtain a palindrome (90999909).

The spelling of 121030212 in words is "one hundred twenty-one million, thirty thousand, two hundred twelve".