10200021111211 has 4 divisors (see below), whose sum is σ = 10322912931912. Its totient is φ = 10077129290512.

The previous prime is 10200021111197. The next prime is 10200021111251. The reversal of 10200021111211 is 11211112000201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10200021111211 - 2¹¹ = 10200021109163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10200021111191 and 10200021111200.

It is not an unprimeable number, because it can be changed into a prime (10200021111251) 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, 61445910226 + ... + 61445910391.

It is an arithmetic number, because the mean of its divisors is an integer number (2580728232978).

Almost surely, 2^{10200021111211} is an apocalyptic number.

10200021111211 is a deficient number, since it is larger than the sum of its proper divisors (122891820701).

10200021111211 is an equidigital number, since it uses as much as digits as its factorization.

10200021111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122891820700.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10200021111211 its reverse (11211112000201), we get a palindrome (21411133111412).

The spelling of 10200021111211 in words is "ten trillion, two hundred billion, twenty-one million, one hundred eleven thousand, two hundred eleven".