22001001222112 has 48 divisors (see below), whose sum is σ = 47315747348352. Its totient is φ = 9986995419520.

The previous prime is 22001001222103. The next prime is 22001001222113. The reversal of 22001001222112 is 21122210010022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001001222113) 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 7 ways as a sum of consecutive naturals, for example, 41799598 + ... + 42322669.

It is an arithmetic number, because the mean of its divisors is an integer number (985744736424).

Almost surely, 2^{22001001222112} is an apocalyptic number.

22001001222112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22001001222112 is an abundant number, since it is smaller than the sum of its proper divisors (25314746126240).

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

22001001222112 is a wasteful number, since it uses less digits than its factorization.

22001001222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84123031 (or 84123023 counting only the distinct ones).

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

Adding to 22001001222112 its reverse (21122210010022), we get a palindrome (43123211232134).

The spelling of 22001001222112 in words is "twenty-two trillion, one billion, one million, two hundred twenty-two thousand, one hundred twelve".