200111212020001 has 4 divisors (see below), whose sum is σ = 200111794250004. Its totient is φ = 200110629790000.

The previous prime is 200111212019989. The next prime is 200111212020017. The reversal of 200111212020001 is 100020212111002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 116400881077776 + 83710330942225 = 10788924^2 + 9149335^2 .

It is a cyclic number.

It is not a de Polignac number, because 200111212020001 - 2¹¹ = 200111212017953 is a prime.

It is a super-2 number, since 2×200111212020001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200111212090001) 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, 290599150 + ... + 291286951.

It is an arithmetic number, because the mean of its divisors is an integer number (50027948562501).

Almost surely, 2^{200111212020001} is an apocalyptic number.

It is an amenable number.

200111212020001 is a deficient number, since it is larger than the sum of its proper divisors (582230003).

200111212020001 is an equidigital number, since it uses as much as digits as its factorization.

200111212020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582230002.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200111212020001 its reverse (100020212111002), we get a palindrome (300131424131003).

The spelling of 200111212020001 in words is "two hundred trillion, one hundred eleven billion, two hundred twelve million, twenty thousand, one".