212350220404 has 24 divisors (see below), whose sum is σ = 424838369088. Its totient is φ = 90977681280.

The previous prime is 212350220363. The next prime is 212350220471. The reversal of 212350220404 is 404022053212.

It is a super-2 number, since 2×212350220404² (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 7 ways as a sum of consecutive naturals, for example, 1143637 + ... + 1316284.

It is an arithmetic number, because the mean of its divisors is an integer number (17701598712).

Almost surely, 2^212350220404 is an apocalyptic number.

It is an amenable number.

212350220404 is an abundant number, since it is smaller than the sum of its proper divisors (212488148684).

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

212350220404 is a wasteful number, since it uses less digits than its factorization.

212350220404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463015 (or 2463013 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 212350220404 its reverse (404022053212), we get a palindrome (616372273616).

The spelling of 212350220404 in words is "two hundred twelve billion, three hundred fifty million, two hundred twenty thousand, four hundred four".