22202220222021 has 8 divisors (see below), whose sum is σ = 33831954624064. Its totient is φ = 12686982984000.

The previous prime is 22202220222019. The next prime is 22202220222043. The reversal of 22202220222021 is 12022202220222.

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

It is not a de Polignac number, because 22202220222021 - 2¹ = 22202220222019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1057248582001 = 22202220222021 / (2 + 2 + 2 + 0 + 2 + 2 + 2 + 0 + 2 + 2 + 2 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202220222001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528624290980 + ... + 528624291021.

It is an arithmetic number, because the mean of its divisors is an integer number (4228994328008).

Almost surely, 2^{22202220222021} is an apocalyptic number.

22202220222021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22202220222021 is a deficient number, since it is larger than the sum of its proper divisors (11629734402043).

22202220222021 is a wasteful number, since it uses less digits than its factorization.

22202220222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057248582011.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22202220222021 its reverse (12022202220222), we get a palindrome (34224422442243).

The spelling of 22202220222021 in words is "twenty-two trillion, two hundred two billion, two hundred twenty million, two hundred twenty-two thousand, twenty-one".