120121210203 has 8 divisors (see below), whose sum is σ = 160172537616. Its totient is φ = 80075344800.

The previous prime is 120121210177. The next prime is 120121210217. The reversal of 120121210203 is 302012121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120121210203 - 2²² = 120117015899 is a prime.

It is a super-2 number, since 2×120121210203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120121210273) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1313908 + ... + 1402353.

It is an arithmetic number, because the mean of its divisors is an integer number (20021567202).

Almost surely, 2^120121210203 is an apocalyptic number.

120121210203 is a deficient number, since it is larger than the sum of its proper divisors (40051327413).

120121210203 is a wasteful number, since it uses less digits than its factorization.

120121210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731005.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120121210203 its reverse (302012121021), we get a palindrome (422133331224).

The spelling of 120121210203 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred ten thousand, two hundred three".