1101021201021 has 32 divisors (see below), whose sum is σ = 1714304128000. Its totient is φ = 628303178160.

The previous prime is 1101021201013. The next prime is 1101021201037. The reversal of 1101021201021 is 1201021201011.

It is not a de Polignac number, because 1101021201021 - 2³ = 1101021201013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101021200988 and 1101021201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101021201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36486 + ... + 1484376.

It is an arithmetic number, because the mean of its divisors is an integer number (53572004000).

Almost surely, 2^{1101021201021} is an apocalyptic number.

It is an amenable number.

1101021201021 is a deficient number, since it is larger than the sum of its proper divisors (613282926979).

1101021201021 is an equidigital number, since it uses as much as digits as its factorization.

1101021201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448654 (or 1448640 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101021201021 its reverse (1201021201011), we get a palindrome (2302042402032).

The spelling of 1101021201021 in words is "one trillion, one hundred one billion, twenty-one million, two hundred one thousand, twenty-one".