2111220221002 has 16 divisors (see below), whose sum is σ = 3245733114624. Its totient is φ = 1029335580000.

The previous prime is 2111220220999. The next prime is 2111220221009. The reversal of 2111220221002 is 2001220221112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2111220221009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6438324 + ... + 6758287.

It is an arithmetic number, because the mean of its divisors is an integer number (202858319664).

Almost surely, 2^{2111220221002} is an apocalyptic number.

2111220221002 is a deficient number, since it is larger than the sum of its proper divisors (1134512893622).

2111220221002 is a wasteful number, since it uses less digits than its factorization.

2111220221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13198605.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2111220221002 its reverse (2001220221112), we get a palindrome (4112440442114).

The spelling of 2111220221002 in words is "two trillion, one hundred eleven billion, two hundred twenty million, two hundred twenty-one thousand, two".