22210212021 has 8 divisors (see below), whose sum is σ = 29763939744. Its totient is φ = 14731646160.

The previous prime is 22210211987. The next prime is 22210212053. The reversal of 22210212021 is 12021201222.

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

It is not a de Polignac number, because 22210212021 - 2⁶ = 22210211957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210212121) 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, 18789775 + ... + 18790956.

It is an arithmetic number, because the mean of its divisors is an integer number (3720492468).

Almost surely, 2^22210212021 is an apocalyptic number.

It is an amenable number.

22210212021 is a deficient number, since it is larger than the sum of its proper divisors (7553727723).

22210212021 is a wasteful number, since it uses less digits than its factorization.

22210212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37580931.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22210212021 its reverse (12021201222), we get a palindrome (34231413243).

The spelling of 22210212021 in words is "twenty-two billion, two hundred ten million, two hundred twelve thousand, twenty-one".