2211252110251 has 4 divisors (see below), whose sum is σ = 2219065722232. Its totient is φ = 2203438498272.

The previous prime is 2211252110219. The next prime is 2211252110269. The reversal of 2211252110251 is 1520112521122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2211252110251 - 2⁵ = 2211252110219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211252110651) 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, 3906805566 + ... + 3906806131.

It is an arithmetic number, because the mean of its divisors is an integer number (554766430558).

Almost surely, 2^{2211252110251} is an apocalyptic number.

2211252110251 is a deficient number, since it is larger than the sum of its proper divisors (7813611981).

2211252110251 is an equidigital number, since it uses as much as digits as its factorization.

2211252110251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813611980.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 2211252110251 its reverse (1520112521122), we get a palindrome (3731364631373).

The spelling of 2211252110251 in words is "two trillion, two hundred eleven billion, two hundred fifty-two million, one hundred ten thousand, two hundred fifty-one".