212203120404 has 48 divisors (see below), whose sum is σ = 540180748800. Its totient is φ = 64300719840.

The previous prime is 212203120397. The next prime is 212203120417. The reversal of 212203120404 is 404021302212.

It is a super-2 number, since 2×212203120404² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4424947 + ... + 4472645.

It is an arithmetic number, because the mean of its divisors is an integer number (11253765600).

Almost surely, 2^212203120404 is an apocalyptic number.

It is an amenable number.

212203120404 is an abundant number, since it is smaller than the sum of its proper divisors (327977628396).

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

212203120404 is a wasteful number, since it uses less digits than its factorization.

212203120404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81420 (or 81418 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 212203120404 its reverse (404021302212), we get a palindrome (616224422616).

The spelling of 212203120404 in words is "two hundred twelve billion, two hundred three million, one hundred twenty thousand, four hundred four".