2212221101501 has 2 divisors, whose sum is σ = 2212221101502. Its totient is φ = 2212221101500.

The previous prime is 2212221101429. The next prime is 2212221101533. The reversal of 2212221101501 is 1051011222122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2019385944601 + 192835156900 = 1421051^2 + 439130^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212221101501 - 2¹⁰ = 2212221100477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212221101551) 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 as a sum of consecutive naturals, namely, 1106110550750 + 1106110550751.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110550751).

Almost surely, 2^{2212221101501} is an apocalyptic number.

It is an amenable number.

2212221101501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212221101501 is an equidigital number, since it uses as much as digits as its factorization.

2212221101501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 2212221101501 its reverse (1051011222122), we get a palindrome (3263232323623).

The spelling of 2212221101501 in words is "two trillion, two hundred twelve billion, two hundred twenty-one million, one hundred one thousand, five hundred one".