212120111203 has 96 divisors (see below), whose sum is σ = 292214587392. Its totient is φ = 149485564800.

The previous prime is 212120111171. The next prime is 212120111219. The reversal of 212120111203 is 302111021212.

It is not a de Polignac number, because 212120111203 - 2⁵ = 212120111171 is a prime.

It is a super-2 number, since 2×212120111203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212120111233) 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, 194426688 + ... + 194427778.

It is an arithmetic number, because the mean of its divisors is an integer number (3043901952).

Almost surely, 2^212120111203 is an apocalyptic number.

212120111203 is a deficient number, since it is larger than the sum of its proper divisors (80094476189).

212120111203 is a wasteful number, since it uses less digits than its factorization.

212120111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212120111203 its reverse (302111021212), we get a palindrome (514231132415).

It can be divided in two parts, 212120 and 111203, that added together give a palindrome (323323).

The spelling of 212120111203 in words is "two hundred twelve billion, one hundred twenty million, one hundred eleven thousand, two hundred three".