1201020101120 has 160 divisors (see below), whose sum is σ = 3300968474496. Its totient is φ = 410532249600.

The previous prime is 1201020101087. The next prime is 1201020101123. The reversal of 1201020101120 is 211010201021.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (1201020101123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5830280 + ... + 6032760.

Almost surely, 2^{1201020101120} is an apocalyptic number.

1201020101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201020101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650484237248).

1201020101120 is an abundant number, since it is smaller than the sum of its proper divisors (2099948373376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201020101120 is an equidigital number, since it uses as much as digits as its factorization.

1201020101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202842 (or 202826 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1201020101120 its reverse (211010201021), we get a palindrome (1412030302141).

Subtracting from 1201020101120 its reverse (211010201021), we obtain a palindrome (990009900099).

The spelling of 1201020101120 in words is "one trillion, two hundred one billion, twenty million, one hundred one thousand, one hundred twenty".