212023220030 has 32 divisors (see below), whose sum is σ = 382532544000. Its totient is φ = 84611536672.

The previous prime is 212023219981. The next prime is 212023220039. The reversal of 212023220030 is 30022320212.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212023219990 and 212023220008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023220039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9686879 + ... + 9708741.

It is an arithmetic number, because the mean of its divisors is an integer number (11954142000).

Almost surely, 2^212023220030 is an apocalyptic number.

212023220030 is a deficient number, since it is larger than the sum of its proper divisors (170509323970).

212023220030 is a wasteful number, since it uses less digits than its factorization.

212023220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24088.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 212023220030 its reverse (30022320212), we get a palindrome (242045540242).

The spelling of 212023220030 in words is "two hundred twelve billion, twenty-three million, two hundred twenty thousand, thirty".