210021121120259 has 2 divisors, whose sum is σ = 210021121120260. Its totient is φ = 210021121120258.

The previous prime is 210021121120171. The next prime is 210021121120387. The reversal of 210021121120259 is 952021121120012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210021121120259 is a prime.

It is a super-2 number, since 2×210021121120259² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (210021121125259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010560560129 + 105010560560130.

It is an arithmetic number, because the mean of its divisors is an integer number (105010560560130).

Almost surely, 2^{210021121120259} is an apocalyptic number.

210021121120259 is a deficient number, since it is larger than the sum of its proper divisors (1).

210021121120259 is an equidigital number, since it uses as much as digits as its factorization.

210021121120259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 29.

The spelling of 210021121120259 in words is "two hundred ten trillion, twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, two hundred fifty-nine".