100220311 has 2 divisors, whose sum is σ = 100220312. Its totient is φ = 100220310.

The previous prime is 100220299. The next prime is 100220327. The reversal of 100220311 is 113022001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100220311 is a prime.

It is a super-2 number, since 2×100220311² = 20088221473873442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100220711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110155 + 50110156.

It is an arithmetic number, because the mean of its divisors is an integer number (50110156).

Almost surely, 2^100220311 is an apocalyptic number.

100220311 is a deficient number, since it is larger than the sum of its proper divisors (1).

100220311 is an equidigital number, since it uses as much as digits as its factorization.

100220311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100220311 is about 10011.0094895570. The cubic root of 100220311 is about 464.4994977058.

Adding to 100220311 its reverse (113022001), we get a palindrome (213242312).

The spelling of 100220311 in words is "one hundred million, two hundred twenty thousand, three hundred eleven".