1224112021000 has 128 divisors (see below), whose sum is σ = 3155765857920. Its totient is φ = 440724000000.

The previous prime is 1224112020983. The next prime is 1224112021001. The reversal of 1224112021000 is 1202114221.

It is not an unprimeable number, because it can be changed into a prime (1224112021001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560095 + ... + 1661905.

It is an arithmetic number, because the mean of its divisors is an integer number (24654420765).

Almost surely, 2^{1224112021000} is an apocalyptic number.

1224112021000 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 1224112021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577882928960).

1224112021000 is an abundant number, since it is smaller than the sum of its proper divisors (1931653836920).

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

1224112021000 is a wasteful number, since it uses less digits than its factorization.

1224112021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101944 (or 1101930 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1224112021000 its reverse (1202114221), we get a palindrome (1225314135221).

The spelling of 1224112021000 in words is "one trillion, two hundred twenty-four billion, one hundred twelve million, twenty-one thousand".