1201111110101 has 8 divisors (see below), whose sum is σ = 1372750150464. Its totient is φ = 1029485004480.

The previous prime is 1201111110029. The next prime is 1201111110113. The reversal of 1201111110101 is 1010111111021.

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 1201111110101 - 2¹⁴ = 1201111093717 is a prime.

It is a super-3 number, since 3×1201111110101³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201111110401) 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, 3033875 + ... + 3406848.

It is an arithmetic number, because the mean of its divisors is an integer number (171593768808).

Almost surely, 2^{1201111110101} is an apocalyptic number.

It is an amenable number.

1201111110101 is a deficient number, since it is larger than the sum of its proper divisors (171639040363).

1201111110101 is an equidigital number, since it uses as much as digits as its factorization.

1201111110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467371.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1201111110101 its reverse (1010111111021), we get a palindrome (2211222221122).

The spelling of 1201111110101 in words is "one trillion, two hundred one billion, one hundred eleven million, one hundred ten thousand, one hundred one".