10012211200121 has 4 divisors (see below), whose sum is σ = 10782381292452. Its totient is φ = 9242041107792.

The previous prime is 10012211200081. The next prime is 10012211200163. The reversal of 10012211200121 is 12100211221001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6023902644496 + 3988308555625 = 2454364^2 + 1997075^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012211200121 - 2³⁴ = 9995031330937 is a prime.

It is a super-2 number, since 2×10012211200121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10012211200096 and 10012211200105.

It is not an unprimeable number, because it can be changed into a prime (10012211200171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385085046146 + ... + 385085046171.

It is an arithmetic number, because the mean of its divisors is an integer number (2695595323113).

Almost surely, 2^{10012211200121} is an apocalyptic number.

It is an amenable number.

10012211200121 is a deficient number, since it is larger than the sum of its proper divisors (770170092331).

10012211200121 is an equidigital number, since it uses as much as digits as its factorization.

10012211200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770170092330.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10012211200121 its reverse (12100211221001), we get a palindrome (22112422421122).

The spelling of 10012211200121 in words is "ten trillion, twelve billion, two hundred eleven million, two hundred thousand, one hundred twenty-one".