20210222213 has 4 divisors (see below), whose sum is σ = 20243518080. Its totient is φ = 20176926348.

The previous prime is 20210222203. The next prime is 20210222257. The reversal of 20210222213 is 31222201202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20210222213 - 2⁸ = 20210221957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210222191 and 20210222200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210222203) 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, 16647023 + ... + 16648236.

It is an arithmetic number, because the mean of its divisors is an integer number (5060879520).

Almost surely, 2^20210222213 is an apocalyptic number.

It is an amenable number.

20210222213 is a deficient number, since it is larger than the sum of its proper divisors (33295867).

20210222213 is an equidigital number, since it uses as much as digits as its factorization.

20210222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33295866.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20210222213 its reverse (31222201202), we get a palindrome (51432423415).

The spelling of 20210222213 in words is "twenty billion, two hundred ten million, two hundred twenty-two thousand, two hundred thirteen".