20222121002213 has 8 divisors (see below), whose sum is σ = 21777753911928. Its totient is φ = 18666500255424.

The previous prime is 20222121002207. The next prime is 20222121002219. The reversal of 20222121002213 is 31220012122202.

It is an interprime number because it is at equal distance from previous prime (20222121002207) and next prime (20222121002219).

It can be written as a sum of positive squares in 4 ways, for example, as 1706845570369 + 18515275431844 = 1306463^2 + 4302938^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20222121002213 - 2¹⁰ = 20222121001189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222121002219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571295 + ... + 6385187.

It is an arithmetic number, because the mean of its divisors is an integer number (2722219238991).

Almost surely, 2^{20222121002213} is an apocalyptic number.

It is an amenable number.

20222121002213 is a deficient number, since it is larger than the sum of its proper divisors (1555632909715).

20222121002213 is a wasteful number, since it uses less digits than its factorization.

20222121002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081463.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20222121002213 its reverse (31220012122202), we get a palindrome (51442133124415).

The spelling of 20222121002213 in words is "twenty trillion, two hundred twenty-two billion, one hundred twenty-one million, two thousand, two hundred thirteen".