1101021231200 has 144 divisors (see below), whose sum is σ = 2981919769920. Its totient is φ = 393585216000.

The previous prime is 1101021231197. The next prime is 1101021231203. The reversal of 1101021231200 is 21321201011.

It is an interprime number because it is at equal distance from previous prime (1101021231197) and next prime (1101021231203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101021231203) 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 23 ways as a sum of consecutive naturals, for example, 541106 + ... + 1579505.

It is an arithmetic number, because the mean of its divisors is an integer number (20707776180).

Almost surely, 2^{1101021231200} is an apocalyptic number.

1101021231200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101021231200 is an abundant number, since it is smaller than the sum of its proper divisors (1880898538720).

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

1101021231200 is a wasteful number, since it uses less digits than its factorization.

1101021231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120701 (or 2120688 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1101021231200 its reverse (21321201011), we get a palindrome (1122342432211).

The spelling of 1101021231200 in words is "one trillion, one hundred one billion, twenty-one million, two hundred thirty-one thousand, two hundred".