10221222021 has 8 divisors (see below), whose sum is σ = 13704432480. Its totient is φ = 6776079792.

The previous prime is 10221222019. The next prime is 10221222041. The reversal of 10221222021 is 12022212201.

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

It is not a de Polignac number, because 10221222021 - 2¹ = 10221222019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221222041) 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, 9516430 + ... + 9517503.

It is an arithmetic number, because the mean of its divisors is an integer number (1713054060).

Almost surely, 2^10221222021 is an apocalyptic number.

It is an amenable number.

10221222021 is a deficient number, since it is larger than the sum of its proper divisors (3483210459).

10221222021 is a wasteful number, since it uses less digits than its factorization.

10221222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19034115.

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

Adding to 10221222021 its reverse (12022212201), we get a palindrome (22243434222).

The spelling of 10221222021 in words is "ten billion, two hundred twenty-one million, two hundred twenty-two thousand, twenty-one".