2021110222 has 4 divisors (see below), whose sum is σ = 3031665336. Its totient is φ = 1010555110.

The previous prime is 2021110181. The next prime is 2021110241. The reversal of 2021110222 is 2220111202.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 505277554 + ... + 505277557.

It is an arithmetic number, because the mean of its divisors is an integer number (757916334).

Almost surely, 2^2021110222 is an apocalyptic number.

2021110222 is a deficient number, since it is larger than the sum of its proper divisors (1010555114).

2021110222 is a wasteful number, since it uses less digits than its factorization.

2021110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010555113.

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

The square root of 2021110222 is about 44956.7594695169. The cubic root of 2021110222 is about 1264.3384130833.

Adding to 2021110222 its reverse (2220111202), we get a palindrome (4241221424).

The spelling of 2021110222 in words is "two billion, twenty-one million, one hundred ten thousand, two hundred twenty-two".