1122001201000 has 64 divisors (see below), whose sum is σ = 2649570066000. Its totient is φ = 444683001600.

The previous prime is 1122001200959. The next prime is 1122001201037. The reversal of 1122001201000 is 1021002211.

It can be written as a sum of positive squares in 8 ways, for example, as 11165303556 + 1110835897444 = 105666^2 + 1053962^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5037795 + ... + 5255794.

Almost surely, 2^{1122001201000} is an apocalyptic number.

1122001201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122001201000 is an abundant number, since it is smaller than the sum of its proper divisors (1527568865000).

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

1122001201000 is a wasteful number, since it uses less digits than its factorization.

1122001201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10293719 (or 10293705 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1122001201000 its reverse (1021002211), we get a palindrome (1123022203211).

The spelling of 1122001201000 in words is "one trillion, one hundred twenty-two billion, one million, two hundred one thousand".