2201021211021 has 8 divisors (see below), whose sum is σ = 2936734352640. Its totient is φ = 1466327771712.

The previous prime is 2201021211007. The next prime is 2201021211071. The reversal of 2201021211021 is 1201121201022.

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

It is not a de Polignac number, because 2201021211021 - 2⁷ = 2201021210893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201021211071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254920540 + ... + 254929173.

It is an arithmetic number, because the mean of its divisors is an integer number (367091794080).

Almost surely, 2^{2201021211021} is an apocalyptic number.

It is an amenable number.

2201021211021 is a deficient number, since it is larger than the sum of its proper divisors (735713141619).

2201021211021 is a wasteful number, since it uses less digits than its factorization.

2201021211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509851155.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2201021211021 its reverse (1201121201022), we get a palindrome (3402142412043).

Subtracting from 2201021211021 its reverse (1201121201022), we obtain a palindrome (999900009999).

The spelling of 2201021211021 in words is "two trillion, two hundred one billion, twenty-one million, two hundred eleven thousand, twenty-one".