20022222111012 has 144 divisors (see below), whose sum is σ = 58463182814400. Its totient is φ = 5710185953280.

The previous prime is 20022222110977. The next prime is 20022222111121. The reversal of 20022222111012 is 21011122222002.

It is a happy number.

20022222111012 is a `hidden beast` number, since 200 + 222 + 221 + 1 + 10 + 12 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196382064 + ... + 196483992.

It is an arithmetic number, because the mean of its divisors is an integer number (405994325100).

Almost surely, 2^{20022222111012} is an apocalyptic number.

20022222111012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20022222111012 is an abundant number, since it is smaller than the sum of its proper divisors (38440960703388).

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

20022222111012 is a wasteful number, since it uses less digits than its factorization.

20022222111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131146 (or 131141 counting only the distinct ones).

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

Adding to 20022222111012 its reverse (21011122222002), we get a palindrome (41033344333014).

The spelling of 20022222111012 in words is "twenty trillion, twenty-two billion, two hundred twenty-two million, one hundred eleven thousand, twelve".