212203421430 has 192 divisors, whose sum is σ = 696010952448. Its totient is φ = 40702314240.

The previous prime is 212203421407. The next prime is 212203421431. The reversal of 212203421430 is 34124302212.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212203421430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212203421431) 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, 294532 + ... + 714951.

It is an arithmetic number, because the mean of its divisors is an integer number (3625057044).

Almost surely, 2^212203421430 is an apocalyptic number.

212203421430 is an abundant number, since it is smaller than the sum of its proper divisors (483807531018).

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

212203421430 is a wasteful number, since it uses less digits than its factorization.

212203421430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009531 (or 1009524 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212203421430 its reverse (34124302212), we get a palindrome (246327723642).

The spelling of 212203421430 in words is "two hundred twelve billion, two hundred three million, four hundred twenty-one thousand, four hundred thirty".