11020221101 has 4 divisors (see below), whose sum is σ = 11144043900. Its totient is φ = 10896398304.

The previous prime is 11020221097. The next prime is 11020221137. The reversal of 11020221101 is 10112202011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10112202011 = 23 ⋅439660957.

It can be written as a sum of positive squares in 2 ways, for example, as 1861922500 + 9158298601 = 43150^2 + 95699^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020221101 - 2² = 11020221097 is a prime.

It is a super-2 number, since 2×11020221101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020221301) 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, 61911266 + ... + 61911443.

It is an arithmetic number, because the mean of its divisors is an integer number (2786010975).

Almost surely, 2^11020221101 is an apocalyptic number.

It is an amenable number.

11020221101 is a deficient number, since it is larger than the sum of its proper divisors (123822799).

11020221101 is an equidigital number, since it uses as much as digits as its factorization.

11020221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123822798.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11020221101 its reverse (10112202011), we get a palindrome (21132423112).

The spelling of 11020221101 in words is "eleven billion, twenty million, two hundred twenty-one thousand, one hundred one".