2201120001001 has 2 divisors, whose sum is σ = 2201120001002. Its totient is φ = 2201120001000.

The previous prime is 2201120000983. The next prime is 2201120001011. The reversal of 2201120001001 is 1001000211022.

It is an a-pointer prime, because the next prime (2201120001011) can be obtained adding 2201120001001 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1402035973776 + 799084027225 = 1184076^2 + 893915^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201120001001 - 2⁹ = 2201120000489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201120001011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100560000500 + 1100560000501.

It is an arithmetic number, because the mean of its divisors is an integer number (1100560000501).

Almost surely, 2^{2201120001001} is an apocalyptic number.

It is an amenable number.

2201120001001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201120001001 is an equidigital number, since it uses as much as digits as its factorization.

2201120001001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2201120001001 its reverse (1001000211022), we get a palindrome (3202120212023).

The spelling of 2201120001001 in words is "two trillion, two hundred one billion, one hundred twenty million, one thousand, one".