2212221212101 has 4 divisors (see below), whose sum is σ = 2223803522304. Its totient is φ = 2200638901900.

The previous prime is 2212221212083. The next prime is 2212221212143. The reversal of 2212221212101 is 1012121222122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2212221212101 - 2²³ = 2212212823493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212221212501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5791154815 + ... + 5791155196.

It is an arithmetic number, because the mean of its divisors is an integer number (555950880576).

Almost surely, 2^{2212221212101} is an apocalyptic number.

It is an amenable number.

2212221212101 is a deficient number, since it is larger than the sum of its proper divisors (11582310203).

2212221212101 is a wasteful number, since it uses less digits than its factorization.

2212221212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11582310202.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2212221212101 its reverse (1012121222122), we get a palindrome (3224342434223).

The spelling of 2212221212101 in words is "two trillion, two hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, one hundred one".