2001220110022 has 16 divisors (see below), whose sum is σ = 3481866973440. Its totient is φ = 844864779528.

The previous prime is 2001220110011. The next prime is 2001220110041. The reversal of 2001220110022 is 2200110221002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001220109984 and 2001220110011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066747522 + ... + 1066749397.

It is an arithmetic number, because the mean of its divisors is an integer number (217616685840).

Almost surely, 2^{2001220110022} is an apocalyptic number.

2001220110022 is a deficient number, since it is larger than the sum of its proper divisors (1480646863418).

2001220110022 is a wasteful number, since it uses less digits than its factorization.

2001220110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133496995.

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

Adding to 2001220110022 its reverse (2200110221002), we get a palindrome (4201330331024).

The spelling of 2001220110022 in words is "two trillion, one billion, two hundred twenty million, one hundred ten thousand, twenty-two".