1201110122101 has 4 divisors (see below), whose sum is σ = 1201116976704. Its totient is φ = 1201103267500.

The previous prime is 1201110122099. The next prime is 1201110122117. The reversal of 1201110122101 is 1012210111021.

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 1201110122101 - 2¹ = 1201110122099 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 (1201110126101) 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, 3157375 + ... + 3517276.

It is an arithmetic number, because the mean of its divisors is an integer number (300279244176).

Almost surely, 2^{1201110122101} is an apocalyptic number.

It is an amenable number.

1201110122101 is a deficient number, since it is larger than the sum of its proper divisors (6854603).

1201110122101 is an equidigital number, since it uses as much as digits as its factorization.

1201110122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854602.

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

Adding to 1201110122101 its reverse (1012210111021), we get a palindrome (2213320233122).

The spelling of 1201110122101 in words is "one trillion, two hundred one billion, one hundred ten million, one hundred twenty-two thousand, one hundred one".