22221021202202 has 8 divisors (see below), whose sum is σ = 33342420911412. Its totient is φ = 11106880898400.

The previous prime is 22221021202189. The next prime is 22221021202207. The reversal of 22221021202202 is 20220212012222.

It can be written as a sum of positive squares in 2 ways, for example, as 14354785690441 + 7866235511761 = 3788771^2 + 2804681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22221021202207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814843699 + ... + 1814855942.

Almost surely, 2^{22221021202202} is an apocalyptic number.

22221021202202 is a deficient number, since it is larger than the sum of its proper divisors (11121399709210).

22221021202202 is a wasteful number, since it uses less digits than its factorization.

22221021202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629702704.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22221021202202 its reverse (20220212012222), we get a palindrome (42441233214424).

The spelling of 22221021202202 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-one million, two hundred two thousand, two hundred two".