21222320233030 has 32 divisors (see below), whose sum is σ = 44081202207744. Its totient is φ = 7205581125216.

The previous prime is 21222320233013. The next prime is 21222320233057. The reversal of 21222320233030 is 3033202322212.

It is a junction number, because it is equal to n+sod(n) for n = 21222320232986 and 21222320233004.

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, 1471720962 + ... + 1471735381.

It is an arithmetic number, because the mean of its divisors is an integer number (1377537568992).

Almost surely, 2^{21222320233030} is an apocalyptic number.

21222320233030 is an abundant number, since it is smaller than the sum of its proper divisors (22858881974714).

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

21222320233030 is a wasteful number, since it uses less digits than its factorization.

21222320233030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943456460.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21222320233030 its reverse (3033202322212), we get a palindrome (24255522555242).

The spelling of 21222320233030 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred twenty million, two hundred thirty-three thousand, thirty".