2021320222 has 4 divisors (see below), whose sum is σ = 3031980336. Its totient is φ = 1010660110.

The previous prime is 2021320199. The next prime is 2021320243. The reversal of 2021320222 is 2220231202.

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

It is a super-2 number, since 2×2021320222² = 8171470879732258568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021320196 and 2021320205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505330054 + ... + 505330057.

It is an arithmetic number, because the mean of its divisors is an integer number (757995084).

Almost surely, 2^2021320222 is an apocalyptic number.

2021320222 is a deficient number, since it is larger than the sum of its proper divisors (1010660114).

2021320222 is a wasteful number, since it uses less digits than its factorization.

2021320222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010660113.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2021320222 is about 44959.0949864430. The cubic root of 2021320222 is about 1264.3822012067.

Adding to 2021320222 its reverse (2220231202), we get a palindrome (4241551424).

The spelling of 2021320222 in words is "two billion, twenty-one million, three hundred twenty thousand, two hundred twenty-two".