20222220222 has 24 divisors (see below), whose sum is σ = 46392152976. Its totient is φ = 6344225856.

The previous prime is 20222220217. The next prime is 20222220229. The reversal of 20222220222 is 22202222202.

20222220222 is a `hidden beast` number, since 2 + 0 + 222 + 220 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20222220195 and 20222220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222220229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33042538 + ... + 33043149.

It is an arithmetic number, because the mean of its divisors is an integer number (1933006374).

Almost surely, 2^20222220222 is an apocalyptic number.

20222220222 is an abundant number, since it is smaller than the sum of its proper divisors (26169932754).

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

20222220222 is a wasteful number, since it uses less digits than its factorization.

20222220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66085712 (or 66085709 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20222220222 its reverse (22202222202), we get a palindrome (42424442424).

It can be divided in two parts, 202222202 and 22, that multiplied together give a palindrome (4448888444).

The spelling of 20222220222 in words is "twenty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".