220022001120021 has 4 divisors (see below), whose sum is σ = 293362668160032. Its totient is φ = 146681334080012.

The previous prime is 220022001119863. The next prime is 220022001120107. The reversal of 220022001120021 is 120021100220022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220022001120021 - 2⁹ = 220022001119509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022001120721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36670333520001 + ... + 36670333520006.

It is an arithmetic number, because the mean of its divisors is an integer number (73340667040008).

Almost surely, 2^{220022001120021} is an apocalyptic number.

It is an amenable number.

220022001120021 is a deficient number, since it is larger than the sum of its proper divisors (73340667040011).

220022001120021 is an equidigital number, since it uses as much as digits as its factorization.

220022001120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73340667040010.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220022001120021 its reverse (120021100220022), we get a palindrome (340043101340043).

The spelling of 220022001120021 in words is "two hundred twenty trillion, twenty-two billion, one million, one hundred twenty thousand, twenty-one".