1002020221101 has 16 divisors (see below), whose sum is σ = 1343739051200. Its totient is φ = 664159253760.

The previous prime is 1002020221009. The next prime is 1002020221117. The reversal of 1002020221101 is 1011220202001.

1002020221101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1002020221101 - 2²² = 1002016026797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020221141) 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, 2000661 + ... + 2450853.

It is an arithmetic number, because the mean of its divisors is an integer number (83983690700).

Almost surely, 2^{1002020221101} is an apocalyptic number.

It is an amenable number.

1002020221101 is a deficient number, since it is larger than the sum of its proper divisors (341718830099).

1002020221101 is a wasteful number, since it uses less digits than its factorization.

1002020221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454476.

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

Adding to 1002020221101 its reverse (1011220202001), we get a palindrome (2013240423102).

The spelling of 1002020221101 in words is "one trillion, two billion, twenty million, two hundred twenty-one thousand, one hundred one".