2222221201021 has 8 divisors (see below), whose sum is σ = 2260497464640. Its totient is φ = 2183965320768.

The previous prime is 2222221201007. The next prime is 2222221201069. The reversal of 2222221201021 is 1201021222222.

2222221201021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2222221201021 - 2¹⁹ = 2222220676733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222221201021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222221208021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4875841 + ... + 5312086.

It is an arithmetic number, because the mean of its divisors is an integer number (282562183080).

Almost surely, 2^{2222221201021} is an apocalyptic number.

It is an amenable number.

2222221201021 is a deficient number, since it is larger than the sum of its proper divisors (38276263619).

2222221201021 is a wasteful number, since it uses less digits than its factorization.

2222221201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191683.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2222221201021 its reverse (1201021222222), we get a palindrome (3423242423243).

It can be divided in two parts, 2222221 and 201021, that added together give a palindrome (2423242).

The spelling of 2222221201021 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, twenty-one".