20100222211 has 2 divisors, whose sum is σ = 20100222212. Its totient is φ = 20100222210.

The previous prime is 20100222209. The next prime is 20100222251. The reversal of 20100222211 is 11222200102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20100222211 - 2¹ = 20100222209 is a prime.

Together with 20100222209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20100222191 and 20100222200.

It is not a weakly prime, because it can be changed into another prime (20100222251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050111105 + 10050111106.

It is an arithmetic number, because the mean of its divisors is an integer number (10050111106).

Almost surely, 2^20100222211 is an apocalyptic number.

20100222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100222211 is an equidigital number, since it uses as much as digits as its factorization.

20100222211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20100222211 its reverse (11222200102), we get a palindrome (31322422313).

The spelling of 20100222211 in words is "twenty billion, one hundred million, two hundred twenty-two thousand, two hundred eleven".