22112210100000 has 1152 divisors, whose sum is σ = 77560635801600. Its totient is φ = 5505753600000.

The previous prime is 22112210099929. The next prime is 22112210100017. The reversal of 22112210100000 is 101221122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 61593899821 + ... + 61593900179.

It is an arithmetic number, because the mean of its divisors is an integer number (67326940800).

Almost surely, 2^{22112210100000} is an apocalyptic number.

22112210100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112210100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38780317900800).

22112210100000 is an abundant number, since it is smaller than the sum of its proper divisors (55448425701600).

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

22112210100000 is a wasteful number, since it uses less digits than its factorization.

22112210100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22112210100000 its reverse (101221122), we get a palindrome (22112311321122).

The spelling of 22112210100000 in words is "twenty-two trillion, one hundred twelve billion, two hundred ten million, one hundred thousand".