10001121212122 has 16 divisors (see below), whose sum is σ = 15885802376640. Its totient is φ = 4709005698528.

The previous prime is 10001121212111. The next prime is 10001121212123. The reversal of 10001121212122 is 22121212110001.

It is a junction number, because it is equal to n+sod(n) for n = 10001121212096 and 10001121212105.

It is not an unprimeable number, because it can be changed into a prime (10001121212123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787979883 + ... + 787992574.

It is an arithmetic number, because the mean of its divisors is an integer number (992862648540).

Almost surely, 2^{10001121212122} is an apocalyptic number.

10001121212122 is a deficient number, since it is larger than the sum of its proper divisors (5884681164518).

10001121212122 is a wasteful number, since it uses less digits than its factorization.

10001121212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575972645.

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

Adding to 10001121212122 its reverse (22121212110001), we get a palindrome (32122333322123).

The spelling of 10001121212122 in words is "ten trillion, one billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty-two".