222211022022220 has 72 divisors (see below), whose sum is σ = 592177944430800. Its totient is φ = 69260578289280.

The previous prime is 222211022022193. The next prime is 222211022022229. The reversal of 222211022022220 is 22220220112222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 222211022022191 and 222211022022200.

It is not an unprimeable number, because it can be changed into a prime (222211022022229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10306622895 + ... + 10306644454.

It is an arithmetic number, because the mean of its divisors is an integer number (8224693672650).

Almost surely, 2^{222211022022220} is an apocalyptic number.

222211022022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222211022022220 is an abundant number, since it is smaller than the sum of its proper divisors (369966922408580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222211022022220 is a wasteful number, since it uses less digits than its factorization.

222211022022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20613267383 (or 20613267374 counting only the distinct ones).

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

Adding to 222211022022220 its reverse (22220220112222), we get a palindrome (244431242134442).

The spelling of 222211022022220 in words is "two hundred twenty-two trillion, two hundred eleven billion, twenty-two million, twenty-two thousand, two hundred twenty".