11221001021101 has 4 divisors (see below), whose sum is σ = 11265706204704. Its totient is φ = 11176295837500.

The previous prime is 11221001021077. The next prime is 11221001021107. The reversal of 11221001021101 is 10112010012211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11221001021101 - 2²¹ = 11220998923949 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 (11221001021107) 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, 22352591425 + ... + 22352591926.

It is an arithmetic number, because the mean of its divisors is an integer number (2816426551176).

Almost surely, 2^{11221001021101} is an apocalyptic number.

It is an amenable number.

11221001021101 is a deficient number, since it is larger than the sum of its proper divisors (44705183603).

11221001021101 is an equidigital number, since it uses as much as digits as its factorization.

11221001021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44705183602.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11221001021101 its reverse (10112010012211), we get a palindrome (21333011033312).

The spelling of 11221001021101 in words is "eleven trillion, two hundred twenty-one billion, one million, twenty-one thousand, one hundred one".