2021110022222 has 16 divisors (see below), whose sum is σ = 3047964566640. Its totient is φ = 1005123866112.

The previous prime is 2021110022123. The next prime is 2021110022227. The reversal of 2021110022222 is 2222200111202.

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 2021110022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021110022227) by changing a digit.

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, 1493588 + ... + 2504600.

It is an arithmetic number, because the mean of its divisors is an integer number (190497785415).

Almost surely, 2^{2021110022222} is an apocalyptic number.

2021110022222 is a deficient number, since it is larger than the sum of its proper divisors (1026854544418).

2021110022222 is a wasteful number, since it uses less digits than its factorization.

2021110022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016387.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2021110022222 its reverse (2222200111202), we get a palindrome (4243310133424).

The spelling of 2021110022222 in words is "two trillion, twenty-one billion, one hundred ten million, twenty-two thousand, two hundred twenty-two".