10010121122121 has 4 divisors (see below), whose sum is σ = 13346828162832. Its totient is φ = 6673414081412.

The previous prime is 10010121122119. The next prime is 10010121122123. The reversal of 10010121122121 is 12122112101001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (10010121122119) and next prime (10010121122123).

It is a cyclic number.

It is not a de Polignac number, because 10010121122121 - 2¹ = 10010121122119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10010121122121.

It is not an unprimeable number, because it can be changed into a prime (10010121122123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668353520351 + ... + 1668353520356.

It is an arithmetic number, because the mean of its divisors is an integer number (3336707040708).

Almost surely, 2^{10010121122121} is an apocalyptic number.

It is an amenable number.

10010121122121 is a deficient number, since it is larger than the sum of its proper divisors (3336707040711).

10010121122121 is an equidigital number, since it uses as much as digits as its factorization.

10010121122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336707040710.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10010121122121 its reverse (12122112101001), we get a palindrome (22132233223122).

The spelling of 10010121122121 in words is "ten trillion, ten billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-one".