2101012122 has 32 divisors (see below), whose sum is σ = 4586134464. Its totient is φ = 636377600.

The previous prime is 2101012019. The next prime is 2101012127. The reversal of 2101012122 is 2212101012.

It is a junction number, because it is equal to n+sod(n) for n = 2101012098 and 2101012107.

It is not an unprimeable number, because it can be changed into a prime (2101012127) 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, 169372 + ... + 181352.

It is an arithmetic number, because the mean of its divisors is an integer number (143316702).

Almost surely, 2^2101012122 is an apocalyptic number.

2101012122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101012122 is an abundant number, since it is smaller than the sum of its proper divisors (2485122342).

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

2101012122 is a wasteful number, since it uses less digits than its factorization.

2101012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14654.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2101012122 is about 45836.7987756562. The cubic root of 2101012122 is about 1280.7848624759.

Adding to 2101012122 its reverse (2212101012), we get a palindrome (4313113134).

The spelling of 2101012122 in words is "two billion, one hundred one million, twelve thousand, one hundred twenty-two".