1110021101072 has 80 divisors (see below), whose sum is σ = 2387706937392. Its totient is φ = 496637706240.

The previous prime is 1110021101071. The next prime is 1110021101081. The reversal of 1110021101072 is 2701011200111.

It can be written as a sum of positive squares in 8 ways, for example, as 694248902656 + 415772198416 = 833216^2 + 644804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1110021101072.

It is not an unprimeable number, because it can be changed into a prime (1110021101071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 924368 + ... + 1753424.

Almost surely, 2^{1110021101072} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1110021101072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1193853468696).

1110021101072 is an abundant number, since it is smaller than the sum of its proper divisors (1277685836320).

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

1110021101072 is a wasteful number, since it uses less digits than its factorization.

1110021101072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829276 (or 829270 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 1110021101072 its reverse (2701011200111), we get a palindrome (3811032301183).

The spelling of 1110021101072 in words is "one trillion, one hundred ten billion, twenty-one million, one hundred one thousand, seventy-two".