212323012330 has 64 divisors (see below), whose sum is σ = 463480206336. Its totient is φ = 68970240000.

The previous prime is 212323012309. The next prime is 212323012331. The reversal of 212323012330 is 33210323212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (212323012331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2350471 + ... + 2439130.

It is an arithmetic number, because the mean of its divisors is an integer number (7241878224).

Almost surely, 2^212323012330 is an apocalyptic number.

212323012330 is an abundant number, since it is smaller than the sum of its proper divisors (251157194006).

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

212323012330 is a wasteful number, since it uses less digits than its factorization.

212323012330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789663.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 212323012330 its reverse (33210323212), we get a palindrome (245533335542).

The spelling of 212323012330 in words is "two hundred twelve billion, three hundred twenty-three million, twelve thousand, three hundred thirty".