2021100222 has 16 divisors (see below), whose sum is σ = 4042651392. Its totient is φ = 673624920.

The previous prime is 2021100217. The next prime is 2021100227. The reversal of 2021100222 is 2220011202.

It is an interprime number because it is at equal distance from previous prime (2021100217) and next prime (2021100227).

It is a super-2 number, since 2×2021100222² = 8169692214736898568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021100198 and 2021100207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021100227) 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, 77197 + ... + 100007.

It is an arithmetic number, because the mean of its divisors is an integer number (252665712).

Almost surely, 2^2021100222 is an apocalyptic number.

2021100222 is an abundant number, since it is smaller than the sum of its proper divisors (2021551170).

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

2021100222 is a wasteful number, since it uses less digits than its factorization.

2021100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37583.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2021100222 is about 44956.6482513988. The cubic root of 2021100222 is about 1264.3363278589.

Adding to 2021100222 its reverse (2220011202), we get a palindrome (4241111424).

The spelling of 2021100222 in words is "two billion, twenty-one million, one hundred thousand, two hundred twenty-two".