200121102202111 has 8 divisors (see below), whose sum is σ = 200958471483264. Its totient is φ = 199285416076800.

The previous prime is 200121102202019. The next prime is 200121102202121. The reversal of 200121102202111 is 111202201121002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200121102202111 - 2¹⁷ = 200121102071039 is a prime.

It is a super-2 number, since 2×200121102202111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121102202121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420550671 + ... + 421026256.

It is an arithmetic number, because the mean of its divisors is an integer number (25119808935408).

Almost surely, 2^{200121102202111} is an apocalyptic number.

200121102202111 is a deficient number, since it is larger than the sum of its proper divisors (837369281153).

200121102202111 is an equidigital number, since it uses as much as digits as its factorization.

200121102202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841577921.

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

Adding to 200121102202111 its reverse (111202201121002), we get a palindrome (311323303323113).

The spelling of 200121102202111 in words is "two hundred trillion, one hundred twenty-one billion, one hundred two million, two hundred two thousand, one hundred eleven".