120121212124 has 6 divisors (see below), whose sum is σ = 210212121224. Its totient is φ = 60060606060.

The previous prime is 120121212119. The next prime is 120121212151. The reversal of 120121212124 is 421212121021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015151512 + ... + 15015151519.

Almost surely, 2^120121212124 is an apocalyptic number.

It is an amenable number.

120121212124 is a deficient number, since it is larger than the sum of its proper divisors (90090909100).

120121212124 is a wasteful number, since it uses less digits than its factorization.

120121212124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30030303035 (or 30030303033 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120121212124 its reverse (421212121021), we get a palindrome (541333333145).

The spelling of 120121212124 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty-four".