2001110022220 has 24 divisors (see below), whose sum is σ = 4232563650000. Its totient is φ = 794685417792.

The previous prime is 2001110022209. The next prime is 2001110022281. The reversal of 2001110022220 is 222200111002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001110022220.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 359909095 + ... + 359914654.

It is an arithmetic number, because the mean of its divisors is an integer number (176356818750).

Almost surely, 2^{2001110022220} is an apocalyptic number.

2001110022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001110022220 is an abundant number, since it is smaller than the sum of its proper divisors (2231453627780).

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

2001110022220 is a wasteful number, since it uses less digits than its factorization.

2001110022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719823897 (or 719823895 counting only the distinct ones).

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

Adding to 2001110022220 its reverse (222200111002), we get a palindrome (2223310133222).

The spelling of 2001110022220 in words is "two trillion, one billion, one hundred ten million, twenty-two thousand, two hundred twenty".