2211188106225 has 48 divisors (see below), whose sum is σ = 4279997312640. Its totient is φ = 986174476800.

The previous prime is 2211188106223. The next prime is 2211188106227. The reversal of 2211188106225 is 5226018811122.

It is an interprime number because it is at equal distance from previous prime (2211188106223) and next prime (2211188106227).

It is not a de Polignac number, because 2211188106225 - 2¹ = 2211188106223 is a prime.

It is a super-2 number, since 2×2211188106225² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2211188106223) 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 47 ways as a sum of consecutive naturals, for example, 51341730 + ... + 51384779.

It is an arithmetic number, because the mean of its divisors is an integer number (89166610680).

Almost surely, 2^{2211188106225} is an apocalyptic number.

2211188106225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2211188106225 is a deficient number, since it is larger than the sum of its proper divisors (2068809206415).

2211188106225 is a wasteful number, since it uses less digits than its factorization.

2211188106225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102726570 (or 102726565 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The spelling of 2211188106225 in words is "two trillion, two hundred eleven billion, one hundred eighty-eight million, one hundred six thousand, two hundred twenty-five".