1201112021101 has 8 divisors (see below), whose sum is σ = 1253400289344. Its totient is φ = 1148829253440.

The previous prime is 1201112021093. The next prime is 1201112021111. The reversal of 1201112021101 is 1011202111021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201112021101 - 2³ = 1201112021093 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 (1201112021111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925791 + ... + 1805356.

It is an arithmetic number, because the mean of its divisors is an integer number (156675036168).

Almost surely, 2^{1201112021101} is an apocalyptic number.

It is an amenable number.

1201112021101 is a deficient number, since it is larger than the sum of its proper divisors (52288268243).

1201112021101 is a wasteful number, since it uses less digits than its factorization.

1201112021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750291.

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

Adding to 1201112021101 its reverse (1011202111021), we get a palindrome (2212314132122).

The spelling of 1201112021101 in words is "one trillion, two hundred one billion, one hundred twelve million, twenty-one thousand, one hundred one".