22132221021222 has 64 divisors (see below), whose sum is σ = 47810499441600. Its totient is φ = 6789760671744.

The previous prime is 22132221021191. The next prime is 22132221021223. The reversal of 22132221021222 is 22212012223122.

It is a junction number, because it is equal to n+sod(n) for n = 22132221021192 and 22132221021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132221021223) 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, 345605718 + ... + 345669750.

It is an arithmetic number, because the mean of its divisors is an integer number (747039053775).

Almost surely, 2^{22132221021222} is an apocalyptic number.

22132221021222 is an abundant number, since it is smaller than the sum of its proper divisors (25678278420378).

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

22132221021222 is a wasteful number, since it uses less digits than its factorization.

22132221021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77097.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 22132221021222 its reverse (22212012223122), we get a palindrome (44344233244344).

The spelling of 22132221021222 in words is "twenty-two trillion, one hundred thirty-two billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-two".