1222000010000 has 800 divisors, whose sum is σ = 3925947294720. Its totient is φ = 356832000000.

The previous prime is 1222000009957. The next prime is 1222000010009. The reversal of 1222000010000 is 100002221.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1222000010000.

It is not an unprimeable number, because it can be changed into a prime (1222000010009) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1477629587 + ... + 1477630413.

Almost surely, 2^{1222000010000} is an apocalyptic number.

1222000010000 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 1222000010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962973647360).

1222000010000 is an abundant number, since it is smaller than the sum of its proper divisors (2703947284720).

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

1222000010000 is a wasteful number, since it uses less digits than its factorization.

1222000010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 1222000010000 its reverse (100002221), we get a palindrome (1222100012221).

The spelling of 1222000010000 in words is "one trillion, two hundred twenty-two billion, ten thousand".