2221202202001 has 4 divisors (see below), whose sum is σ = 2222702002404. Its totient is φ = 2219702401600.

The previous prime is 2221202201929. The next prime is 2221202202053. The reversal of 2221202202001 is 1002022021222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 817214192001 + 1403988010000 = 903999^2 + 1184900^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221202202001 - 2¹⁷ = 2221202070929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221202242001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749897980 + ... + 749900941.

It is an arithmetic number, because the mean of its divisors is an integer number (555675500601).

Almost surely, 2^{2221202202001} is an apocalyptic number.

It is an amenable number.

2221202202001 is a deficient number, since it is larger than the sum of its proper divisors (1499800403).

2221202202001 is a wasteful number, since it uses less digits than its factorization.

2221202202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499800402.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2221202202001 its reverse (1002022021222), we get a palindrome (3223224223223).

The spelling of 2221202202001 in words is "two trillion, two hundred twenty-one billion, two hundred two million, two hundred two thousand, one".