130222021021 has 4 divisors (see below), whose sum is σ = 130223130012. Its totient is φ = 130220912032.

The previous prime is 130222021003. The next prime is 130222021031. The reversal of 130222021021 is 120120222031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 54384572025 + 75837448996 = 233205^2 + 275386^2 .

It is a cyclic number.

It is not a de Polignac number, because 130222021021 - 2¹⁷ = 130221889949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130222020986 and 130222021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130222021031) 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, 354256 + ... + 621241.

It is an arithmetic number, because the mean of its divisors is an integer number (32555782503).

Almost surely, 2^130222021021 is an apocalyptic number.

It is an amenable number.

130222021021 is a deficient number, since it is larger than the sum of its proper divisors (1108991).

130222021021 is an equidigital number, since it uses as much as digits as its factorization.

130222021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108990.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 130222021021 its reverse (120120222031), we get a palindrome (250342243052).

The spelling of 130222021021 in words is "one hundred thirty billion, two hundred twenty-two million, twenty-one thousand, twenty-one".