2101351122 has 24 divisors (see below), whose sum is σ = 4903153164. Its totient is φ = 646569504.

The previous prime is 2101351121. The next prime is 2101351123. The reversal of 2101351122 is 2211531012.

It is an interprime number because it is at equal distance from previous prime (2101351121) and next prime (2101351123).

It can be written as a sum of positive squares in 2 ways, for example, as 2042045721 + 59305401 = 45189^2 + 7701^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2101351095 and 2101351104.

It is not an unprimeable number, because it can be changed into a prime (2101351121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4489833 + ... + 4490300.

Almost surely, 2^2101351122 is an apocalyptic number.

2101351122 is an abundant number, since it is smaller than the sum of its proper divisors (2801802042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101351122 is a wasteful number, since it uses less digits than its factorization.

2101351122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8980154 (or 8980151 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2101351122 is about 45840.4965287245. The cubic root of 2101351122 is about 1280.8537439948.

Adding to 2101351122 its reverse (2211531012), we get a palindrome (4312882134).

The spelling of 2101351122 in words is "two billion, one hundred one million, three hundred fifty-one thousand, one hundred twenty-two".