3111222100020 has 96 divisors (see below), whose sum is σ = 9195896062080. Its totient is φ = 783766241280.

The previous prime is 3111222100009. The next prime is 3111222100033. The reversal of 3111222100020 is 200012221113.

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

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3463221 + ... + 4268060.

It is an arithmetic number, because the mean of its divisors is an integer number (95790583980).

Almost surely, 2^{3111222100020} is an apocalyptic number.

3111222100020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3111222100020 is an abundant number, since it is smaller than the sum of its proper divisors (6084673962060).

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

3111222100020 is a wasteful number, since it uses less digits than its factorization.

3111222100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7731665 (or 7731663 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 3111222100020 its reverse (200012221113), we get a palindrome (3311234321133).

It can be divided in two parts, 311122 and 2100020, that added together give a palindrome (2411142).

The spelling of 3111222100020 in words is "three trillion, one hundred eleven billion, two hundred twenty-two million, one hundred thousand, twenty".