1100202201021 has 32 divisors (see below), whose sum is σ = 1832110765056. Its totient is φ = 570532608000.

The previous prime is 1100202200983. The next prime is 1100202201023. The reversal of 1100202201021 is 1201022020011.

It is not a de Polignac number, because 1100202201021 - 2²¹ = 1100200103869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100202200988 and 1100202201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100202201023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4038660 + ... + 4302461.

It is an arithmetic number, because the mean of its divisors is an integer number (57253461408).

Almost surely, 2^{1100202201021} is an apocalyptic number.

1100202201021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100202201021 is a deficient number, since it is larger than the sum of its proper divisors (731908564035).

1100202201021 is a wasteful number, since it uses less digits than its factorization.

1100202201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341713.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100202201021 its reverse (1201022020011), we get a palindrome (2301224221032).

The spelling of 1100202201021 in words is "one trillion, one hundred billion, two hundred two million, two hundred one thousand, twenty-one".