100122030221 has 2 divisors, whose sum is σ = 100122030222. Its totient is φ = 100122030220.

The previous prime is 100122030199. The next prime is 100122030233. The reversal of 100122030221 is 122030221001.

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., 64348468900 + 35773561321 = 253670^2 + 189139^2 .

It is a cyclic number.

It is not a de Polignac number, because 100122030221 - 2⁶ = 100122030157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100122030196 and 100122030205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100122030121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50061015110 + 50061015111.

It is an arithmetic number, because the mean of its divisors is an integer number (50061015111).

Almost surely, 2^100122030221 is an apocalyptic number.

It is an amenable number.

100122030221 is a deficient number, since it is larger than the sum of its proper divisors (1).

100122030221 is an equidigital number, since it uses as much as digits as its factorization.

100122030221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100122030221 its reverse (122030221001), we get a palindrome (222152251222).

The spelling of 100122030221 in words is "one hundred billion, one hundred twenty-two million, thirty thousand, two hundred twenty-one".