21010012000122 has 32 divisors (see below), whose sum is σ = 45358946455680. Its totient is φ = 6467849769920.

The previous prime is 21010012000049. The next prime is 21010012000147. The reversal of 21010012000122 is 22100021001012.

It is a junction number, because it is equal to n+sod(n) for n = 21010012000098 and 21010012000107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2624935029 + ... + 2624943032.

It is an arithmetic number, because the mean of its divisors is an integer number (1417467076740).

Almost surely, 2^{21010012000122} is an apocalyptic number.

21010012000122 is an abundant number, since it is smaller than the sum of its proper divisors (24348934455558).

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

21010012000122 is a wasteful number, since it uses less digits than its factorization.

21010012000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249878118.

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

Adding to 21010012000122 its reverse (22100021001012), we get a palindrome (43110033001134).

The spelling of 21010012000122 in words is "twenty-one trillion, ten billion, twelve million, one hundred twenty-two", and thus it is an aban number.