10211012200121 has 4 divisors (see below), whose sum is σ = 10211519045712. Its totient is φ = 10210505354532.

The previous prime is 10211012200093. The next prime is 10211012200133. The reversal of 10211012200121 is 12100221011201.

10211012200121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 10211012200121 - 2⁴² = 5812965689017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211012200096 and 10211012200105.

It is not an unprimeable number, because it can be changed into a prime (10211012200321) 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, 253392575 + ... + 253432868.

It is an arithmetic number, because the mean of its divisors is an integer number (2552879761428).

Almost surely, 2^{10211012200121} is an apocalyptic number.

It is an amenable number.

10211012200121 is a deficient number, since it is larger than the sum of its proper divisors (506845591).

10211012200121 is an equidigital number, since it uses as much as digits as its factorization.

10211012200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506845590.

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

Adding to 10211012200121 its reverse (12100221011201), we get a palindrome (22311233211322).

The spelling of 10211012200121 in words is "ten trillion, two hundred eleven billion, twelve million, two hundred thousand, one hundred twenty-one".