10000222021 has 4 divisors (see below), whose sum is σ = 10000654272. Its totient is φ = 9999789772.

The previous prime is 10000222019. The next prime is 10000222091. The reversal of 10000222021 is 12022200001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12022200001 = 7 ⋅1717457143.

It is a cyclic number.

It is not a de Polignac number, because 10000222021 - 2¹ = 10000222019 is a prime.

It is a super-3 number, since 3×10000222021³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000221989 and 10000222007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000222091) 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, 179335 + ... + 228388.

It is an arithmetic number, because the mean of its divisors is an integer number (2500163568).

Almost surely, 2^10000222021 is an apocalyptic number.

It is an amenable number.

10000222021 is a deficient number, since it is larger than the sum of its proper divisors (432251).

10000222021 is an equidigital number, since it uses as much as digits as its factorization.

10000222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432250.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10000222021 its reverse (12022200001), we get a palindrome (22022422022).

The spelling of 10000222021 in words is "ten billion, two hundred twenty-two thousand, twenty-one".