2211210022201 has 4 divisors (see below), whose sum is σ = 2265141974004. Its totient is φ = 2157278070400.

The previous prime is 2211210022127. The next prime is 2211210022261. The reversal of 2211210022201 is 1022200121122.

It is a happy number.

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 1174570418176 + 1036639604025 = 1083776^2 + 1018155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211210022201 - 2¹⁷ = 2211209891129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211210022261) 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 in 3 ways as a sum of consecutive naturals, for example, 26965975840 + ... + 26965975921.

It is an arithmetic number, because the mean of its divisors is an integer number (566285493501).

Almost surely, 2^{2211210022201} is an apocalyptic number.

It is an amenable number.

2211210022201 is a deficient number, since it is larger than the sum of its proper divisors (53931951803).

2211210022201 is an equidigital number, since it uses as much as digits as its factorization.

2211210022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53931951802.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2211210022201 its reverse (1022200121122), we get a palindrome (3233410143323).

The spelling of 2211210022201 in words is "two trillion, two hundred eleven billion, two hundred ten million, twenty-two thousand, two hundred one".