210200012121011 has 4 divisors (see below), whose sum is σ = 229309104132024. Its totient is φ = 191090920110000.

The previous prime is 210200012120983. The next prime is 210200012121017. The reversal of 210200012121011 is 110121210002012.

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-210200012121011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210200012121017) 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, 9554546005490 + ... + 9554546005511.

It is an arithmetic number, because the mean of its divisors is an integer number (57327276033006).

Almost surely, 2^{210200012121011} is an apocalyptic number.

210200012121011 is a deficient number, since it is larger than the sum of its proper divisors (19109092011013).

210200012121011 is a wasteful number, since it uses less digits than its factorization.

210200012121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19109092011012.

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

Adding to 210200012121011 its reverse (110121210002012), we get a palindrome (320321222123023).

The spelling of 210200012121011 in words is "two hundred ten trillion, two hundred billion, twelve million, one hundred twenty-one thousand, eleven".