1201110113221 has 4 divisors (see below), whose sum is σ = 1201369033600. Its totient is φ = 1200851192844.

The previous prime is 1201110113197. The next prime is 1201110113243. The reversal of 1201110113221 is 1223110111021.

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 1201110113221 - 2³¹ = 1198962629573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201110113195 and 1201110113204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201111113221) 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, 129453231 + ... + 129462508.

It is an arithmetic number, because the mean of its divisors is an integer number (300342258400).

Almost surely, 2^{1201110113221} is an apocalyptic number.

It is an amenable number.

1201110113221 is a deficient number, since it is larger than the sum of its proper divisors (258920379).

1201110113221 is an equidigital number, since it uses as much as digits as its factorization.

1201110113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258920378.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1201110113221 its reverse (1223110111021), we get a palindrome (2424220224242).

The spelling of 1201110113221 in words is "one trillion, two hundred one billion, one hundred ten million, one hundred thirteen thousand, two hundred twenty-one".