212003330121 has 96 divisors (see below), whose sum is σ = 348563554560. Its totient is φ = 123034982400.

The previous prime is 212003330113. The next prime is 212003330137. The reversal of 212003330121 is 121033300212.

212003330121 is a `hidden beast` number, since 212 + 0 + 0 + 3 + 330 + 121 = 666.

It is not a de Polignac number, because 212003330121 - 2³ = 212003330113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212003330094 and 212003330103.

It is not an unprimeable number, because it can be changed into a prime (212003330141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 75958236 + ... + 75961026.

It is an arithmetic number, because the mean of its divisors is an integer number (3630870360).

Almost surely, 2^212003330121 is an apocalyptic number.

It is an amenable number.

212003330121 is a deficient number, since it is larger than the sum of its proper divisors (136560224439).

212003330121 is a wasteful number, since it uses less digits than its factorization.

212003330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167 (or 3164 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212003330121 its reverse (121033300212), we get a palindrome (333036630333).

The spelling of 212003330121 in words is "two hundred twelve billion, three million, three hundred thirty thousand, one hundred twenty-one".