1220131112200 has 288 divisors, whose sum is σ = 3837718745280. Its totient is φ = 351046080000.

The previous prime is 1220131112191. The next prime is 1220131112203. The reversal of 1220131112200 is 22111310221.

It is not an unprimeable number, because it can be changed into a prime (1220131112203) 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 71 ways as a sum of consecutive naturals, for example, 1925175 + ... + 2479225.

It is an arithmetic number, because the mean of its divisors is an integer number (13325412310).

Almost surely, 2^{1220131112200} is an apocalyptic number.

1220131112200 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 1220131112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918859372640).

1220131112200 is an abundant number, since it is smaller than the sum of its proper divisors (2617587633080).

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

1220131112200 is a wasteful number, since it uses less digits than its factorization.

1220131112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554109 (or 554089 counting only the distinct ones).

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

Adding to 1220131112200 its reverse (22111310221), we get a palindrome (1242242422421).

It can be divided in two parts, 1220131 and 112200, that added together give a palindrome (1332331).

The spelling of 1220131112200 in words is "one trillion, two hundred twenty billion, one hundred thirty-one million, one hundred twelve thousand, two hundred".