11221122012101 has 4 divisors (see below), whose sum is σ = 11221543362732. Its totient is φ = 11220700661472.

The previous prime is 11221122012077. The next prime is 11221122012103. The reversal of 11221122012101 is 10121022112211.

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 5858331319201 + 5362790692900 = 2420399^2 + 2315770^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221122012101 - 2³⁴ = 11203942142917 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 11221122012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221122012103) 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, 210635366 + ... + 210688631.

It is an arithmetic number, because the mean of its divisors is an integer number (2805385840683).

Almost surely, 2^{11221122012101} is an apocalyptic number.

It is an amenable number.

11221122012101 is a deficient number, since it is larger than the sum of its proper divisors (421350631).

11221122012101 is an equidigital number, since it uses as much as digits as its factorization.

11221122012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421350630.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11221122012101 its reverse (10121022112211), we get a palindrome (21342144124312).

The spelling of 11221122012101 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, twelve thousand, one hundred one".