10120211202121 has 4 divisors (see below), whose sum is σ = 10120354490752. Its totient is φ = 10120067913492.

The previous prime is 10120211202113. The next prime is 10120211202139. The reversal of 10120211202121 is 12120211202101.

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 10120211202121 - 2³ = 10120211202113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120211202095 and 10120211202104.

It is not an unprimeable number, because it can be changed into a prime (10120211202161) 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, 71538321 + ... + 71679646.

It is an arithmetic number, because the mean of its divisors is an integer number (2530088622688).

Almost surely, 2^{10120211202121} is an apocalyptic number.

It is an amenable number.

10120211202121 is a deficient number, since it is larger than the sum of its proper divisors (143288631).

10120211202121 is an equidigital number, since it uses as much as digits as its factorization.

10120211202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143288630.

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

Adding to 10120211202121 its reverse (12120211202101), we get a palindrome (22240422404222).

The spelling of 10120211202121 in words is "ten trillion, one hundred twenty billion, two hundred eleven million, two hundred two thousand, one hundred twenty-one".