2211002221000 has 64 divisors (see below), whose sum is σ = 5173966278000. Its totient is φ = 884363097600.

The previous prime is 2211002220997. The next prime is 2211002221003. The reversal of 2211002221000 is 1222001122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2211002220997) and next prime (2211002221003).

It can be written as a sum of positive squares in 8 ways, for example, as 11766608676 + 2199235612324 = 108474^2 + 1482982^2 .

It is not an unprimeable number, because it can be changed into a prime (2211002221003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42683116 + ... + 42734884.

Almost surely, 2^{2211002221000} is an apocalyptic number.

2211002221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211002221000 is an abundant number, since it is smaller than the sum of its proper divisors (2962964057000).

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

2211002221000 is a wasteful number, since it uses less digits than its factorization.

2211002221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94499 (or 94485 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2211002221000 its reverse (1222001122), we get a palindrome (2212224222122).

The spelling of 2211002221000 in words is "two trillion, two hundred eleven billion, two million, two hundred twenty-one thousand".