2021212202222 has 8 divisors (see below), whose sum is σ = 3031824736200. Its totient is φ = 1010603956824.

The previous prime is 2021212202221. The next prime is 2021212202257. The reversal of 2021212202222 is 2222022121202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2021212202222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021212202194 and 2021212202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021212202221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676529 + ... + 2121347.

It is an arithmetic number, because the mean of its divisors is an integer number (378978092025).

Almost surely, 2^{2021212202222} is an apocalyptic number.

2021212202222 is a deficient number, since it is larger than the sum of its proper divisors (1010612533978).

2021212202222 is a wasteful number, since it uses less digits than its factorization.

2021212202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144290.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2021212202222 its reverse (2222022121202), we get a palindrome (4243234323424).

The spelling of 2021212202222 in words is "two trillion, twenty-one billion, two hundred twelve million, two hundred two thousand, two hundred twenty-two".