1001102210020 has 96 divisors (see below), whose sum is σ = 2303709206400. Its totient is φ = 362407680000.

The previous prime is 1001102209999. The next prime is 1001102210131. The reversal of 1001102210020 is 200122011001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1001102209979 and 1001102210006.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170571646 + ... + 170577514.

It is an arithmetic number, because the mean of its divisors is an integer number (23996970900).

Almost surely, 2^{1001102210020} is an apocalyptic number.

1001102210020 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 1001102210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151854603200).

1001102210020 is an abundant number, since it is smaller than the sum of its proper divisors (1302606996380).

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

1001102210020 is a wasteful number, since it uses less digits than its factorization.

1001102210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9229 (or 9227 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1001102210020 its reverse (200122011001), we get a palindrome (1201224221021).

The spelling of 1001102210020 in words is "one trillion, one billion, one hundred two million, two hundred ten thousand, twenty".