10001212112122 has 32 divisors (see below), whose sum is σ = 18729082180224. Its totient is φ = 3891260174400.

The previous prime is 10001212112117. The next prime is 10001212112153. The reversal of 10001212112122 is 22121121210001.

It is a junction number, because it is equal to n+sod(n) for n = 10001212112096 and 10001212112105.

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, 44186529 + ... + 44412292.

It is an arithmetic number, because the mean of its divisors is an integer number (585283818132).

Almost surely, 2^{10001212112122} is an apocalyptic number.

10001212112122 is a deficient number, since it is larger than the sum of its proper divisors (8727870068102).

10001212112122 is a wasteful number, since it uses less digits than its factorization.

10001212112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88599574.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10001212112122 its reverse (22121121210001), we get a palindrome (32122333322123).

The spelling of 10001212112122 in words is "ten trillion, one billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty-two".