1101211020000 has 2880 divisors, whose sum is σ = 5226822881280. Its totient is φ = 213497856000.

The previous prime is 1101211019983. The next prime is 1101211020043. The reversal of 1101211020000 is 201121011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 13939379961 + ... + 13939380039.

It is an arithmetic number, because the mean of its divisors is an integer number (1814869056).

Almost surely, 2^{1101211020000} is an apocalyptic number.

1101211020000 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 1101211020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2613411440640).

1101211020000 is an abundant number, since it is smaller than the sum of its proper divisors (4125611861280).

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

1101211020000 is a wasteful number, since it uses less digits than its factorization.

1101211020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1101211020000 its reverse (201121011), we get a palindrome (1101412141011).

The spelling of 1101211020000 in words is "one trillion, one hundred one billion, two hundred eleven million, twenty thousand".