1222002011000 has 64 divisors (see below), whose sum is σ = 2860468490880. Its totient is φ = 488632636800.

The previous prime is 1222002010987. The next prime is 1222002011003. The reversal of 1222002011000 is 1102002221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222002011003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2718254 + ... + 3135746.

It is an arithmetic number, because the mean of its divisors is an integer number (44694820170).

Almost surely, 2^{1222002011000} is an apocalyptic number.

1222002011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222002011000 is an abundant number, since it is smaller than the sum of its proper divisors (1638466479880).

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

1222002011000 is a wasteful number, since it uses less digits than its factorization.

1222002011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420441 (or 420427 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1222002011000 its reverse (1102002221), we get a palindrome (1223104013221).

The spelling of 1222002011000 in words is "one trillion, two hundred twenty-two billion, two million, eleven thousand".