1000121210106 has 32 divisors (see below), whose sum is σ = 2120154637248. Its totient is φ = 313430050560.

The previous prime is 1000121210069. The next prime is 1000121210107. The reversal of 1000121210106 is 6010121210001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1000121210107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5113960 + ... + 5305923.

It is an arithmetic number, because the mean of its divisors is an integer number (66254832414).

Almost surely, 2^{1000121210106} is an apocalyptic number.

1000121210106 is an abundant number, since it is smaller than the sum of its proper divisors (1120033427142).

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

1000121210106 is a wasteful number, since it uses less digits than its factorization.

1000121210106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10420846.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1000121210106 its reverse (6010121210001), we get a palindrome (7010242420107).

The spelling of 1000121210106 in words is "one trillion, one hundred twenty-one million, two hundred ten thousand, one hundred six".