222202110122021 has 4 divisors (see below), whose sum is σ = 233896958023200. Its totient is φ = 210507262220844.

The previous prime is 222202110121961. The next prime is 222202110122077. The reversal of 222202110122021 is 120221011202222.

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 222202110122021 - 2²² = 222202105927717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222202110121984 and 222202110122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202110122221) 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, 5847423950561 + ... + 5847423950598.

It is an arithmetic number, because the mean of its divisors is an integer number (58474239505800).

Almost surely, 2^{222202110122021} is an apocalyptic number.

It is an amenable number.

222202110122021 is a deficient number, since it is larger than the sum of its proper divisors (11694847901179).

222202110122021 is a wasteful number, since it uses less digits than its factorization.

222202110122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11694847901178.

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

Adding to 222202110122021 its reverse (120221011202222), we get a palindrome (342423121324243).

The spelling of 222202110122021 in words is "two hundred twenty-two trillion, two hundred two billion, one hundred ten million, one hundred twenty-two thousand, twenty-one".