2012100122 has 8 divisors (see below), whose sum is σ = 3149374176. Its totient is φ = 962308732.

The previous prime is 2012100121. The next prime is 2012100137. The reversal of 2012100122 is 2210012102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2012100121) 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 3 ways as a sum of consecutive naturals, for example, 21870608 + ... + 21870699.

It is an arithmetic number, because the mean of its divisors is an integer number (393671772).

Almost surely, 2^2012100122 is an apocalyptic number.

2012100122 is a deficient number, since it is larger than the sum of its proper divisors (1137274054).

2012100122 is a wasteful number, since it uses less digits than its factorization.

2012100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43741332.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2012100122 is about 44856.4390249605. The cubic root of 2012100122 is about 1262.4568093188.

Adding to 2012100122 its reverse (2210012102), we get a palindrome (4222112224).

The spelling of 2012100122 in words is "two billion, twelve million, one hundred thousand, one hundred twenty-two".