1201111112101 has 8 divisors (see below), whose sum is σ = 1211817136320. Its totient is φ = 1190406434112.

The previous prime is 1201111112087. The next prime is 1201111112189. The reversal of 1201111112101 is 1012111111021.

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 1201111112101 - 2⁷ = 1201111111973 is a prime.

It is a super-2 number, since 2×1201111112101² (a number of 25 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 (1201111112701) 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, 1500270 + ... + 2157088.

It is an arithmetic number, because the mean of its divisors is an integer number (151477142040).

Almost surely, 2^{1201111112101} is an apocalyptic number.

It is an amenable number.

1201111112101 is a deficient number, since it is larger than the sum of its proper divisors (10706024219).

1201111112101 is a wasteful number, since it uses less digits than its factorization.

1201111112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673115.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1201111112101 its reverse (1012111111021), we get a palindrome (2213222223122).

The spelling of 1201111112101 in words is "one trillion, two hundred one billion, one hundred eleven million, one hundred twelve thousand, one hundred one".