20100012122 has 8 divisors (see below), whose sum is σ = 30205749972. Its totient is φ = 10031428800.

The previous prime is 20100012103. The next prime is 20100012181. The reversal of 20100012122 is 22121000102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19991414881 + 108597241 = 141391^2 + 10421^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9287279 + ... + 9289442.

Almost surely, 2^20100012122 is an apocalyptic number.

20100012122 is a deficient number, since it is larger than the sum of its proper divisors (10105737850).

20100012122 is a wasteful number, since it uses less digits than its factorization.

20100012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18577264.

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

Adding to 20100012122 its reverse (22121000102), we get a palindrome (42221012224).

The spelling of 20100012122 in words is "twenty billion, one hundred million, twelve thousand, one hundred twenty-two".