200121210210001 has 8 divisors (see below), whose sum is σ = 200275023674880. Its totient is φ = 199967399916768.

The previous prime is 200121210209981. The next prime is 200121210210023. The reversal of 200121210210001 is 100012012121002.

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 200121210210001 - 2⁷ = 200121210209873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121210210041) 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, 134281005 + ... + 135763141.

It is an arithmetic number, because the mean of its divisors is an integer number (25034377959360).

Almost surely, 2^{200121210210001} is an apocalyptic number.

It is an amenable number.

200121210210001 is a deficient number, since it is larger than the sum of its proper divisors (153813464879).

200121210210001 is a wasteful number, since it uses less digits than its factorization.

200121210210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585823.

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

Adding to 200121210210001 its reverse (100012012121002), we get a palindrome (300133222331003).

The spelling of 200121210210001 in words is "two hundred trillion, one hundred twenty-one billion, two hundred ten million, two hundred ten thousand, one".