2211021102109 has 2 divisors, whose sum is σ = 2211021102110. Its totient is φ = 2211021102108.

The previous prime is 2211021102013. The next prime is 2211021102139. The reversal of 2211021102109 is 9012011201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2023534700100 + 187486402009 = 1422510^2 + 432997^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211021102109 - 2³⁵ = 2176661363741 is a prime.

It is a super-2 number, since 2×2211021102109² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2211021102109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211021102139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105510551054 + 1105510551055.

It is an arithmetic number, because the mean of its divisors is an integer number (1105510551055).

Almost surely, 2^{2211021102109} is an apocalyptic number.

It is an amenable number.

2211021102109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211021102109 is an equidigital number, since it uses as much as digits as its factorization.

2211021102109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 2211021102109 in words is "two trillion, two hundred eleven billion, twenty-one million, one hundred two thousand, one hundred nine".