222120221102021 has 8 divisors (see below), whose sum is σ = 244712106777888. Its totient is φ = 199928191810000.

The previous prime is 222120221101979. The next prime is 222120221102033. The reversal of 222120221102021 is 120201122021222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222120221102021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222120221101984 and 222120221102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120221102071) 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, 99964094795 + ... + 99964097016.

It is an arithmetic number, because the mean of its divisors is an integer number (30589013347236).

Almost surely, 2^{222120221102021} is an apocalyptic number.

It is an amenable number.

222120221102021 is a deficient number, since it is larger than the sum of its proper divisors (22591885675867).

222120221102021 is a wasteful number, since it uses less digits than its factorization.

222120221102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199928191923.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222120221102021 its reverse (120201122021222), we get a palindrome (342321343123243).

The spelling of 222120221102021 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred two thousand, twenty-one".