10200210000121 has 4 divisors (see below), whose sum is σ = 10323104096592. Its totient is φ = 10077315903652.

The previous prime is 10200210000073. The next prime is 10200210000161. The reversal of 10200210000121 is 12100001200201.

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 10200210000121 - 2¹¹ = 10200209998073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10200210000098 and 10200210000107.

It is not an unprimeable number, because it can be changed into a prime (10200210000161) 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, 61447048111 + ... + 61447048276.

It is an arithmetic number, because the mean of its divisors is an integer number (2580776024148).

Almost surely, 2^{10200210000121} is an apocalyptic number.

It is an amenable number.

10200210000121 is a deficient number, since it is larger than the sum of its proper divisors (122894096471).

10200210000121 is an equidigital number, since it uses as much as digits as its factorization.

10200210000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122894096470.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10200210000121 its reverse (12100001200201), we get a palindrome (22300211200322).

The spelling of 10200210000121 in words is "ten trillion, two hundred billion, two hundred ten million, one hundred twenty-one", and thus it is an aban number.