121203012 has 48 divisors (see below), whose sum is σ = 324437120. Its totient is φ = 34497792.

The previous prime is 121202981. The next prime is 121203037. The reversal of 121203012 is 210302121.

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

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 15 ways as a sum of consecutive naturals, for example, 20664 + ... + 25872.

Almost surely, 2^121203012 is an apocalyptic number.

121203012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121203012 is an abundant number, since it is smaller than the sum of its proper divisors (203234108).

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

121203012 is a wasteful number, since it uses less digits than its factorization.

121203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500 (or 5498 counting only the distinct ones).

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

The square root of 121203012 is about 11009.2239508514. The cubic root of 121203012 is about 494.8852054995.

Adding to 121203012 its reverse (210302121), we get a palindrome (331505133).

The spelling of 121203012 in words is "one hundred twenty-one million, two hundred three thousand, twelve".