2211021101 has 2 divisors, whose sum is σ = 2211021102. Its totient is φ = 2211021100.

The previous prime is 2211021079. The next prime is 2211021121. The reversal of 2211021101 is 1011201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1218708100 + 992313001 = 34910^2 + 31501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211021101 is a prime.

It is a super-2 number, since 2×2211021101² = 9777228618134504402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211021121) 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, 1105510550 + 1105510551.

It is an arithmetic number, because the mean of its divisors is an integer number (1105510551).

Almost surely, 2^2211021101 is an apocalyptic number.

It is an amenable number.

2211021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211021101 is an equidigital number, since it uses as much as digits as its factorization.

2211021101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2211021101 is about 47021.4961586719. The cubic root of 2211021101 is about 1302.7596408432.

Adding to 2211021101 its reverse (1011201122), we get a palindrome (3222222223).

It can be divided in two parts, 2211021 and 101, that added together give a palindrome (2211122).

The spelling of 2211021101 in words is "two billion, two hundred eleven million, twenty-one thousand, one hundred one".