222102020020021 has 8 divisors (see below), whose sum is σ = 226836518275584. Its totient is φ = 217367893571280.

The previous prime is 222102020020009. The next prime is 222102020020073. The reversal of 222102020020021 is 120020020201222.

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

It is a cyclic number.

It is not a de Polignac number, because 222102020020021 - 2¹¹ = 222102020017973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222102020019977 and 222102020020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102020020081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91744090 + ... + 94133851.

It is an arithmetic number, because the mean of its divisors is an integer number (28354564784448).

Almost surely, 2^{222102020020021} is an apocalyptic number.

It is an amenable number.

222102020020021 is a deficient number, since it is larger than the sum of its proper divisors (4734498255563).

222102020020021 is a wasteful number, since it uses less digits than its factorization.

222102020020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185903411.

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

Adding to 222102020020021 its reverse (120020020201222), we get a palindrome (342122040221243).

The spelling of 222102020020021 in words is "two hundred twenty-two trillion, one hundred two billion, twenty million, twenty thousand, twenty-one".