22222000010221 has 16 divisors (see below), whose sum is σ = 24299284359168. Its totient is φ = 20154251249200.

The previous prime is 22222000010219. The next prime is 22222000010239. The reversal of 22222000010221 is 12201000022222.

It is a cyclic number.

It is not a de Polignac number, because 22222000010221 - 2¹ = 22222000010219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22222000010195 and 22222000010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222000010261) 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, 23699406 + ... + 24619216.

It is an arithmetic number, because the mean of its divisors is an integer number (1518705272448).

Almost surely, 2^{22222000010221} is an apocalyptic number.

It is an amenable number.

22222000010221 is a deficient number, since it is larger than the sum of its proper divisors (2077284348947).

22222000010221 is a wasteful number, since it uses less digits than its factorization.

22222000010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924992.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22222000010221 its reverse (12201000022222), we get a palindrome (34423000032443).

The spelling of 22222000010221 in words is "twenty-two trillion, two hundred twenty-two billion, ten thousand, two hundred twenty-one".