10222220993 has 4 divisors (see below), whose sum is σ = 10666665408. Its totient is φ = 9777776580.

The previous prime is 10222220977. The next prime is 10222221001. The reversal of 10222220993 is 39902222201.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 10222220993 - 2⁴ = 10222220977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10222220893) 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, 222222173 + ... + 222222218.

It is an arithmetic number, because the mean of its divisors is an integer number (2666666352).

Almost surely, 2^10222220993 is an apocalyptic number.

It is an amenable number.

10222220993 is a deficient number, since it is larger than the sum of its proper divisors (444444415).

10222220993 is an equidigital number, since it uses as much as digits as its factorization.

10222220993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444444414.

The product of its (nonzero) digits is 7776, while the sum is 32.

Adding to 10222220993 its sum of digits (32), we get a square (10222221025 = 101105²).

The spelling of 10222220993 in words is "ten billion, two hundred twenty-two million, two hundred twenty thousand, nine hundred ninety-three".