130213333122221 has 4 divisors (see below), whose sum is σ = 134703448057500. Its totient is φ = 125723218186944.

The previous prime is 130213333122149. The next prime is 130213333122239. The reversal of 130213333122221 is 122221333312031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74969864688196 + 55243468434025 = 8658514^2 + 7432595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130213333122221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4490114935249 = 130213333122221 / (1 + 3 + 0 + 2 + 1 + 3 + 3 + 3 + 3 + 1 + 2 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130213353122221) 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, 2245057467596 + ... + 2245057467653.

It is an arithmetic number, because the mean of its divisors is an integer number (33675862014375).

Almost surely, 2^{130213333122221} is an apocalyptic number.

It is an amenable number.

130213333122221 is a deficient number, since it is larger than the sum of its proper divisors (4490114935279).

130213333122221 is an equidigital number, since it uses as much as digits as its factorization.

130213333122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490114935278.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 130213333122221 its reverse (122221333312031), we get a palindrome (252434666434252).

The spelling of 130213333122221 in words is "one hundred thirty trillion, two hundred thirteen billion, three hundred thirty-three million, one hundred twenty-two thousand, two hundred twenty-one".