200211120021121 has 4 divisors (see below), whose sum is σ = 218412130932144. Its totient is φ = 182010109110100.

The previous prime is 200211120021109. The next prime is 200211120021137. The reversal of 200211120021121 is 121120021112002.

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 200211120021121 - 2¹⁷ = 200211119890049 is a prime.

It is a super-2 number, since 2×200211120021121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200211120021095 and 200211120021104.

It is not an unprimeable number, because it can be changed into a prime (200211120021421) 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, 9100505455495 + ... + 9100505455516.

It is an arithmetic number, because the mean of its divisors is an integer number (54603032733036).

Almost surely, 2^{200211120021121} is an apocalyptic number.

It is an amenable number.

200211120021121 is a deficient number, since it is larger than the sum of its proper divisors (18201010911023).

200211120021121 is a wasteful number, since it uses less digits than its factorization.

200211120021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18201010911022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200211120021121 its reverse (121120021112002), we get a palindrome (321331141133123).

The spelling of 200211120021121 in words is "two hundred trillion, two hundred eleven billion, one hundred twenty million, twenty-one thousand, one hundred twenty-one".