211213430204 has 12 divisors (see below), whose sum is σ = 422426860464. Its totient is φ = 90520041504.

The previous prime is 211213430149. The next prime is 211213430269. The reversal of 211213430204 is 402034312112.

211213430204 is an admirable number.

It is a super-2 number, since 2×211213430204² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211213430204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3771668369 + ... + 3771668424.

It is an arithmetic number, because the mean of its divisors is an integer number (35202238372).

Almost surely, 2^211213430204 is an apocalyptic number.

It is an amenable number.

211213430204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211213430204 is a wasteful number, since it uses less digits than its factorization.

211213430204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543336804 (or 7543336802 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 211213430204 its reverse (402034312112), we get a palindrome (613247742316).

The spelling of 211213430204 in words is "two hundred eleven billion, two hundred thirteen million, four hundred thirty thousand, two hundred four".