201210212120 has 32 divisors (see below), whose sum is σ = 453535815600. Its totient is φ = 80339580288.

The previous prime is 201210212101. The next prime is 201210212123. The reversal of 201210212120 is 21212012102.

It is a super-2 number, since 2×201210212120² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201210212095 and 201210212104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201210212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4493210 + ... + 4537769.

Almost surely, 2^201210212120 is an apocalyptic number.

201210212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210212120 is an abundant number, since it is smaller than the sum of its proper divisors (252325603480).

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

201210212120 is a wasteful number, since it uses less digits than its factorization.

201210212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9031547 (or 9031543 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201210212120 its reverse (21212012102), we get a palindrome (222422224222).

The spelling of 201210212120 in words is "two hundred one billion, two hundred ten million, two hundred twelve thousand, one hundred twenty".