1101122201221 has 4 divisors (see below), whose sum is σ = 1258425372832. Its totient is φ = 943819029612.

The previous prime is 1101122201219. The next prime is 1101122201243. The reversal of 1101122201221 is 1221022211011.

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 1101122201221 - 2¹ = 1101122201219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101122201195 and 1101122201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101122211221) 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, 78651585795 + ... + 78651585808.

It is an arithmetic number, because the mean of its divisors is an integer number (314606343208).

Almost surely, 2^{1101122201221} is an apocalyptic number.

It is an amenable number.

1101122201221 is a deficient number, since it is larger than the sum of its proper divisors (157303171611).

1101122201221 is an equidigital number, since it uses as much as digits as its factorization.

1101122201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157303171610.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1101122201221 its reverse (1221022211011), we get a palindrome (2322144412232).

The spelling of 1101122201221 in words is "one trillion, one hundred one billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty-one".