210222211109 has 4 divisors (see below), whose sum is σ = 210224407404. Its totient is φ = 210220014816.

The previous prime is 210222211091. The next prime is 210222211139. The reversal of 210222211109 is 901112222012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128434790884 + 81787420225 = 358378^2 + 285985^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222211109 - 2²⁰ = 210221162533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210222211139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947702 + ... + 1148295.

It is an arithmetic number, because the mean of its divisors is an integer number (52556101851).

Almost surely, 2^210222211109 is an apocalyptic number.

It is an amenable number.

210222211109 is a deficient number, since it is larger than the sum of its proper divisors (2196295).

210222211109 is a wasteful number, since it uses less digits than its factorization.

210222211109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196294.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 210222211109 in words is "two hundred ten billion, two hundred twenty-two million, two hundred eleven thousand, one hundred nine".