2221122010001 has 4 divisors (see below), whose sum is σ = 2275295717604. Its totient is φ = 2166948302400.

The previous prime is 2221122009949. The next prime is 2221122010027. The reversal of 2221122010001 is 1000102211222.

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 200815119376 + 2020306890625 = 448124^2 + 1421375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221122010001 - 2³⁴ = 2203942140817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221122010061) 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, 27086853740 + ... + 27086853821.

It is an arithmetic number, because the mean of its divisors is an integer number (568823929401).

Almost surely, 2^{2221122010001} is an apocalyptic number.

It is an amenable number.

2221122010001 is a deficient number, since it is larger than the sum of its proper divisors (54173707603).

2221122010001 is an equidigital number, since it uses as much as digits as its factorization.

2221122010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54173707602.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221122010001 its reverse (1000102211222), we get a palindrome (3221224221223).

The spelling of 2221122010001 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, ten thousand, one".