10001222112000 has 2304 divisors, whose sum is σ = 41853731512320. Its totient is φ = 2066448384000.

The previous prime is 10001222111981. The next prime is 10001222112041. The reversal of 10001222112000 is 21122210001.

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 255 ways as a sum of consecutive naturals, for example, 23755871790 + ... + 23755872210.

It is an arithmetic number, because the mean of its divisors is an integer number (18165682080).

Almost surely, 2^{10001222112000} is an apocalyptic number.

10001222112000 is a gapful number since it is divisible by the number (10) 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 10001222112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20926865756160).

10001222112000 is an abundant number, since it is smaller than the sum of its proper divisors (31852509400320).

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

10001222112000 is a wasteful number, since it uses less digits than its factorization.

10001222112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 543 counting only the distinct ones).

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

Adding to 10001222112000 its reverse (21122210001), we get a palindrome (10022344322001).

The spelling of 10001222112000 in words is "ten trillion, one billion, two hundred twenty-two million, one hundred twelve thousand".