213220213430 has 32 divisors (see below), whose sum is σ = 441780030720. Its totient is φ = 72578141280.

The previous prime is 213220213421. The next prime is 213220213477. The reversal of 213220213430 is 34312022312.

It is a junction number, because it is equal to n+sod(n) for n = 213220213396 and 213220213405.

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, 10947116 + ... + 10966575.

It is an arithmetic number, because the mean of its divisors is an integer number (13805625960).

Almost surely, 2^213220213430 is an apocalyptic number.

213220213430 is an abundant number, since it is smaller than the sum of its proper divisors (228559817290).

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

213220213430 is a wasteful number, since it uses less digits than its factorization.

213220213430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21913844.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 213220213430 its reverse (34312022312), we get a palindrome (247532235742).

The spelling of 213220213430 in words is "two hundred thirteen billion, two hundred twenty million, two hundred thirteen thousand, four hundred thirty".