2128222101 has 16 divisors (see below), whose sum is σ = 2939477760. Its totient is φ = 1368024000.

The previous prime is 2128222097. The next prime is 2128222121. The reversal of 2128222101 is 1012228212.

It is not a de Polignac number, because 2128222101 - 2² = 2128222097 is a prime.

It is a super-2 number, since 2×2128222101² = 9058658622369708402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128222121) 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 15 ways as a sum of consecutive naturals, for example, 49051 + ... + 81623.

It is an arithmetic number, because the mean of its divisors is an integer number (183717360).

Almost surely, 2^2128222101 is an apocalyptic number.

It is an amenable number.

2128222101 is a deficient number, since it is larger than the sum of its proper divisors (811255659).

2128222101 is a wasteful number, since it uses less digits than its factorization.

2128222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33356.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2128222101 is about 46132.6576407646. The cubic root of 2128222101 is about 1286.2902655312.

The spelling of 2128222101 in words is "two billion, one hundred twenty-eight million, two hundred twenty-two thousand, one hundred one".