100220221289 has 2 divisors, whose sum is σ = 100220221290. Its totient is φ = 100220221288.

The previous prime is 100220221259. The next prime is 100220221301. The reversal of 100220221289 is 982122022001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100183011289 + 37210000 = 316517^2 + 6100^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220221289 - 2⁸ = 100220221033 is a prime.

It is a super-2 number, since 2×100220221289² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100220221249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110110644 + 50110110645.

It is an arithmetic number, because the mean of its divisors is an integer number (50110110645).

Almost surely, 2^100220221289 is an apocalyptic number.

It is an amenable number.

100220221289 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220221289 is an equidigital number, since it uses as much as digits as its factorization.

100220221289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 100220221289 in words is "one hundred billion, two hundred twenty million, two hundred twenty-one thousand, two hundred eighty-nine".