2211222101201 has 4 divisors (see below), whose sum is σ = 2211227234304. Its totient is φ = 2211216968100.

The previous prime is 2211222101197. The next prime is 2211222101233. The reversal of 2211222101201 is 1021012221122.

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 2211222101201 - 2² = 2211222101197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211222101201.

It is not an unprimeable number, because it can be changed into a prime (2211222106201) 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, 1854545 + ... + 2803886.

It is an arithmetic number, because the mean of its divisors is an integer number (552806808576).

Almost surely, 2^{2211222101201} is an apocalyptic number.

It is an amenable number.

2211222101201 is a deficient number, since it is larger than the sum of its proper divisors (5133103).

2211222101201 is an equidigital number, since it uses as much as digits as its factorization.

2211222101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133102.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2211222101201 its reverse (1021012221122), we get a palindrome (3232234322323).

The spelling of 2211222101201 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, one hundred one thousand, two hundred one".