210203203123212 has 48 divisors (see below), whose sum is σ = 528766638134112. Its totient is φ = 64608882024960.

The previous prime is 210203203123117. The next prime is 210203203123213. The reversal of 210203203123212 is 212321302302012.

It is a super-2 number, since 2×210203203123212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210203203123213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718880739 + ... + 719173082.

It is an arithmetic number, because the mean of its divisors is an integer number (11015971627794).

Almost surely, 2^{210203203123212} is an apocalyptic number.

It is an amenable number.

210203203123212 is an abundant number, since it is smaller than the sum of its proper divisors (318563435010900).

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

210203203123212 is a wasteful number, since it uses less digits than its factorization.

210203203123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438054778 (or 1438054776 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 210203203123212 its reverse (212321302302012), we get a palindrome (422524505425224).

The spelling of 210203203123212 in words is "two hundred ten trillion, two hundred three billion, two hundred three million, one hundred twenty-three thousand, two hundred twelve".