1222001121109 has 4 divisors (see below), whose sum is σ = 1222061347404. Its totient is φ = 1221940894816.

The previous prime is 1222001121083. The next prime is 1222001121163. The reversal of 1222001121109 is 9011211002221.

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 714456015025 + 507545106084 = 845255^2 + 712422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222001121109 - 2¹⁷ = 1222000990037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222001121109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222001121179) 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, 30082702 + ... + 30123295.

It is an arithmetic number, because the mean of its divisors is an integer number (305515336851).

Almost surely, 2^{1222001121109} is an apocalyptic number.

It is an amenable number.

1222001121109 is a deficient number, since it is larger than the sum of its proper divisors (60226295).

1222001121109 is an equidigital number, since it uses as much as digits as its factorization.

1222001121109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60226294.

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

The spelling of 1222001121109 in words is "one trillion, two hundred twenty-two billion, one million, one hundred twenty-one thousand, one hundred nine".