20222222111010 has 48 divisors (see below), whose sum is σ = 52592314629816. Its totient is φ = 5391101574144.

The previous prime is 20222222111009. The next prime is 20222222111011. The reversal of 20222222111010 is 1011122222202.

It is a happy number.

20222222111010 is a `hidden beast` number, since 202 + 222 + 221 + 1 + 10 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (20222222111009) and next prime (20222222111011).

It can be written as a sum of positive squares in 4 ways, for example, as 11475244325169 + 8746977785841 = 3387513^2 + 2957529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20222222111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30734929 + ... + 31385988.

Almost surely, 2^{20222222111010} is an apocalyptic number.

20222222111010 is an abundant number, since it is smaller than the sum of its proper divisors (32370092518806).

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

20222222111010 is a wasteful number, since it uses less digits than its factorization.

20222222111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62124547 (or 62124544 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20222222111010 its reverse (1011122222202), we get a palindrome (21233344333212).

The spelling of 20222222111010 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred eleven thousand, ten".