10200121122011 has 4 divisors (see below), whose sum is σ = 10201286459352. Its totient is φ = 10198955784672.

The previous prime is 10200121121969. The next prime is 10200121122029. The reversal of 10200121122011 is 11022112100201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10200121122011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10200121172011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582655541 + ... + 582673046.

It is an arithmetic number, because the mean of its divisors is an integer number (2550321614838).

Almost surely, 2^{10200121122011} is an apocalyptic number.

10200121122011 is a deficient number, since it is larger than the sum of its proper divisors (1165337341).

10200121122011 is an equidigital number, since it uses as much as digits as its factorization.

10200121122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165337340.

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

Adding to 10200121122011 its reverse (11022112100201), we get a palindrome (21222233222212).

The spelling of 10200121122011 in words is "ten trillion, two hundred billion, one hundred twenty-one million, one hundred twenty-two thousand, eleven".