213221202379 has 2 divisors, whose sum is σ = 213221202380. Its totient is φ = 213221202378.

The previous prime is 213221202361. The next prime is 213221202401. The reversal of 213221202379 is 973202122312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213221202379 - 2¹⁹ = 213220678091 is a prime.

It is a super-2 number, since 2×213221202379² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213221202329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106610601189 + 106610601190.

It is an arithmetic number, because the mean of its divisors is an integer number (106610601190).

Almost surely, 2^213221202379 is an apocalyptic number.

213221202379 is a deficient number, since it is larger than the sum of its proper divisors (1).

213221202379 is an equidigital number, since it uses as much as digits as its factorization.

213221202379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 213221202379 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred two thousand, three hundred seventy-nine".