20010022221112 has 96 divisors (see below), whose sum is σ = 47133101685600. Its totient is φ = 7795772202240.

The previous prime is 20010022221107. The next prime is 20010022221113. The reversal of 20010022221112 is 21112222001002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010022221113) 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, 201800698 + ... + 201899830.

It is an arithmetic number, because the mean of its divisors is an integer number (490969809225).

Almost surely, 2^{20010022221112} is an apocalyptic number.

20010022221112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20010022221112 is an abundant number, since it is smaller than the sum of its proper divisors (27123079464488).

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

20010022221112 is a wasteful number, since it uses less digits than its factorization.

20010022221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128957 (or 128942 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20010022221112 its reverse (21112222001002), we get a palindrome (41122244222114).

The spelling of 20010022221112 in words is "twenty trillion, ten billion, twenty-two million, two hundred twenty-one thousand, one hundred twelve".