1201000001120 has 96 divisors (see below), whose sum is σ = 2957890473216. Its totient is φ = 460300032000.

The previous prime is 1201000001059. The next prime is 1201000001129. The reversal of 1201000001120 is 211000001021.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 1201000001098 and 1201000001107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201000001129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697739 + ... + 1699658.

It is an arithmetic number, because the mean of its divisors is an integer number (30811359096).

Almost surely, 2^{1201000001120} is an apocalyptic number.

1201000001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201000001120 is an abundant number, since it is smaller than the sum of its proper divisors (1756890472096).

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

1201000001120 is a wasteful number, since it uses less digits than its factorization.

1201000001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397544 (or 2397536 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1201000001120 its reverse (211000001021), we get a palindrome (1412000002141).

Subtracting from 1201000001120 its reverse (211000001021), we obtain a palindrome (990000000099).

The spelling of 1201000001120 in words is "one trillion, two hundred one billion, one thousand, one hundred twenty".