2201021001021 has 8 divisors (see below), whose sum is σ = 2935233858400. Its totient is φ = 1467077738832.

The previous prime is 2201021001017. The next prime is 2201021001031. The reversal of 2201021001021 is 1201001201022.

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

It is not a de Polignac number, because 2201021001021 - 2² = 2201021001017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201021000988 and 2201021001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201021001031) 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 7 ways as a sum of consecutive naturals, for example, 67379746 + ... + 67412403.

It is an arithmetic number, because the mean of its divisors is an integer number (366904232300).

Almost surely, 2^{2201021001021} is an apocalyptic number.

It is an amenable number.

2201021001021 is a deficient number, since it is larger than the sum of its proper divisors (734212857379).

2201021001021 is a wasteful number, since it uses less digits than its factorization.

2201021001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134797595.

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

Adding to 2201021001021 its reverse (1201001201022), we get a palindrome (3402022202043).

The spelling of 2201021001021 in words is "two trillion, two hundred one billion, twenty-one million, one thousand, twenty-one".