203211212120 has 32 divisors (see below), whose sum is σ = 522543117600. Its totient is φ = 69672415488.

The previous prime is 203211212081. The next prime is 203211212159. The reversal of 203211212120 is 21212112302.

It is an interprime number because it is at equal distance from previous prime (203211212081) and next prime (203211212159).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362876885 + ... + 362877444.

It is an arithmetic number, because the mean of its divisors is an integer number (16329472425).

Almost surely, 2^203211212120 is an apocalyptic number.

203211212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203211212120 is an abundant number, since it is smaller than the sum of its proper divisors (319331905480).

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

203211212120 is a wasteful number, since it uses less digits than its factorization.

203211212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725754347 (or 725754343 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 203211212120 its reverse (21212112302), we get a palindrome (224423324422).

The spelling of 203211212120 in words is "two hundred three billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty".