222021220120222 has 4 divisors (see below), whose sum is σ = 333031830180336. Its totient is φ = 111010610060110.

The previous prime is 222021220120213. The next prime is 222021220120229. The reversal of 222021220120222 is 222021022120222.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×222021220120222² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 222021220120193 and 222021220120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021220120229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505305030054 + ... + 55505305030057.

It is an arithmetic number, because the mean of its divisors is an integer number (83257957545084).

Almost surely, 2^{222021220120222} is an apocalyptic number.

222021220120222 is a deficient number, since it is larger than the sum of its proper divisors (111010610060114).

222021220120222 is a wasteful number, since it uses less digits than its factorization.

222021220120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111010610060113.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222021220120222 its reverse (222021022120222), we get a palindrome (444042242240444).

The spelling of 222021220120222 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty million, one hundred twenty thousand, two hundred twenty-two".