1100020221001 has 8 divisors (see below), whose sum is σ = 1184649941384. Its totient is φ = 1015392326400.

The previous prime is 1100020220983. The next prime is 1100020221031. The reversal of 1100020221001 is 1001220200011.

It can be written as a sum of positive squares in 4 ways, for example, as 4889365776 + 1095130855225 = 69924^2 + 1046485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1100020221001 - 2³⁵ = 1065660482633 is a prime.

It is a super-2 number, since 2×1100020221001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1100020221031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957025 + ... + 1765201.

It is an arithmetic number, because the mean of its divisors is an integer number (148081242673).

Almost surely, 2^{1100020221001} is an apocalyptic number.

It is an amenable number.

1100020221001 is a deficient number, since it is larger than the sum of its proper divisors (84629720383).

1100020221001 is a wasteful number, since it uses less digits than its factorization.

1100020221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912891.

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

Adding to 1100020221001 its reverse (1001220200011), we get a palindrome (2101240421012).

The spelling of 1100020221001 in words is "one trillion, one hundred billion, twenty million, two hundred twenty-one thousand, one".