111021012020000 has 240 divisors, whose sum is σ = 273643959802752. Its totient is φ = 44324663040000.

The previous prime is 111021012019987. The next prime is 111021012020003. The reversal of 111021012020000 is 20210120111.

It is not an unprimeable number, because it can be changed into a prime (111021012020003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39778218605 + ... + 39778221395.

Almost surely, 2^{111021012020000} is an apocalyptic number.

111021012020000 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 111021012020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136821979901376).

111021012020000 is an abundant number, since it is smaller than the sum of its proper divisors (162622947782752).

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

111021012020000 is an equidigital number, since it uses as much as digits as its factorization.

111021012020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861 (or 5838 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111021012020000 its reverse (20210120111), we get a palindrome (111041222140111).

The spelling of 111021012020000 in words is "one hundred eleven trillion, twenty-one billion, twelve million, twenty thousand".