1201120222020 has 48 divisors (see below), whose sum is σ = 3372504750720. Its totient is φ = 319406523136.

The previous prime is 1201120222013. The next prime is 1201120222021. The reversal of 1201120222020 is 202220211021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1201120222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27859617 + ... + 27902696.

It is an arithmetic number, because the mean of its divisors is an integer number (70260515640).

Almost surely, 2^{1201120222020} is an apocalyptic number.

1201120222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201120222020 is an abundant number, since it is smaller than the sum of its proper divisors (2171384528700).

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

1201120222020 is a wasteful number, since it uses less digits than its factorization.

1201120222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55762684 (or 55762682 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1201120222020 its reverse (202220211021), we get a palindrome (1403340433041).

The spelling of 1201120222020 in words is "one trillion, two hundred one billion, one hundred twenty million, two hundred twenty-two thousand, twenty".