200121011211 has 16 divisors (see below), whose sum is σ = 291118843008. Its totient is φ = 121271404800.

The previous prime is 200121011201. The next prime is 200121011227. The reversal of 200121011211 is 112110121002.

It is not a de Polignac number, because 200121011211 - 2¹⁸ = 200120749067 is a prime.

It is a super-2 number, since 2×200121011211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200121011201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58725 + ... + 635366.

It is an arithmetic number, because the mean of its divisors is an integer number (18194927688).

Almost surely, 2^200121011211 is an apocalyptic number.

200121011211 is a deficient number, since it is larger than the sum of its proper divisors (90997831797).

200121011211 is a wasteful number, since it uses less digits than its factorization.

200121011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702842.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 200121011211 its reverse (112110121002), we get a palindrome (312231132213).

The spelling of 200121011211 in words is "two hundred billion, one hundred twenty-one million, eleven thousand, two hundred eleven".