211121322330 has 32 divisors (see below), whose sum is σ = 506729089728. Its totient is φ = 56294806400.

The previous prime is 211121322319. The next prime is 211121322331. The reversal of 211121322330 is 33223121112.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211121322297 and 211121322306.

It is not an unprimeable number, because it can be changed into a prime (211121322331) 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, 155185 + ... + 668075.

It is an arithmetic number, because the mean of its divisors is an integer number (15835284054).

Almost surely, 2^211121322330 is an apocalyptic number.

211121322330 is an abundant number, since it is smaller than the sum of its proper divisors (295607767398).

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

211121322330 is a wasteful number, since it uses less digits than its factorization.

211121322330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526622.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211121322330 its reverse (33223121112), we get a palindrome (244344443442).

The spelling of 211121322330 in words is "two hundred eleven billion, one hundred twenty-one million, three hundred twenty-two thousand, three hundred thirty".