10022221021 has 8 divisors (see below), whose sum is σ = 10618395840. Its totient is φ = 9426783168.

The previous prime is 10022221007. The next prime is 10022221049. The reversal of 10022221021 is 12012222001.

It is a happy number.

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 10022221021 - 2¹⁹ = 10021696733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10022220992 and 10022221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022221081) 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, 156111 + ... + 210748.

It is an arithmetic number, because the mean of its divisors is an integer number (1327299480).

Almost surely, 2^10022221021 is an apocalyptic number.

It is an amenable number.

10022221021 is a deficient number, since it is larger than the sum of its proper divisors (596174819).

10022221021 is a wasteful number, since it uses less digits than its factorization.

10022221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368483.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10022221021 its reverse (12012222001), we get a palindrome (22034443022).

The spelling of 10022221021 in words is "ten billion, twenty-two million, two hundred twenty-one thousand, twenty-one".