3111201122020 has 24 divisors (see below), whose sum is σ = 6540251050368. Its totient is φ = 1243198792800.

The previous prime is 3111201121907. The next prime is 3111201122059. The reversal of 3111201122020 is 202211021113.

It is a junction number, because it is equal to n+sod(n) for n = 3111201121985 and 3111201122003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80083596 + ... + 80122435.

It is an arithmetic number, because the mean of its divisors is an integer number (272510460432).

Almost surely, 2^{3111201122020} is an apocalyptic number.

It is an amenable number.

3111201122020 is an abundant number, since it is smaller than the sum of its proper divisors (3429049928348).

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

3111201122020 is a wasteful number, since it uses less digits than its factorization.

3111201122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160207011 (or 160207009 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 3111201122020 its reverse (202211021113), we get a palindrome (3313412143133).

The spelling of 3111201122020 in words is "three trillion, one hundred eleven billion, two hundred one million, one hundred twenty-two thousand, twenty".