2148222101 has 4 divisors (see below), whose sum is σ = 2200617804. Its totient is φ = 2095826400.

The previous prime is 2148222077. The next prime is 2148222113. The reversal of 2148222101 is 1012228412.

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 1108224100 + 1039998001 = 33290^2 + 32249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2148222101 is a prime.

It is a super-2 number, since 2×2148222101² = 9229716390449708402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148222161) 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, 26197790 + ... + 26197871.

It is an arithmetic number, because the mean of its divisors is an integer number (550154451).

Almost surely, 2^2148222101 is an apocalyptic number.

It is an amenable number.

2148222101 is a deficient number, since it is larger than the sum of its proper divisors (52395703).

2148222101 is an equidigital number, since it uses as much as digits as its factorization.

2148222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52395702.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2148222101 is about 46348.9169344873. The cubic root of 2148222101 is about 1290.3070200468.

The spelling of 2148222101 in words is "two billion, one hundred forty-eight million, two hundred twenty-two thousand, one hundred one".