22222010332221 has 32 divisors (see below), whose sum is σ = 34451067371520. Its totient is φ = 12477620752704.

The previous prime is 22222010332213. The next prime is 22222010332271. The reversal of 22222010332221 is 12223301022222.

It is not a de Polignac number, because 22222010332221 - 2³ = 22222010332213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22222010332191 and 22222010332200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222010332271) 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, 1069885 + ... + 6751938.

It is an arithmetic number, because the mean of its divisors is an integer number (1076595855360).

Almost surely, 2^{22222010332221} is an apocalyptic number.

22222010332221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22222010332221 is a deficient number, since it is larger than the sum of its proper divisors (12229057039299).

22222010332221 is a wasteful number, since it uses less digits than its factorization.

22222010332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824185.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22222010332221 its reverse (12223301022222), we get a palindrome (34445311354443).

The spelling of 22222010332221 in words is "twenty-two trillion, two hundred twenty-two billion, ten million, three hundred thirty-two thousand, two hundred twenty-one".