200121110201001 has 32 divisors (see below), whose sum is σ = 306408359162880. Its totient is φ = 114901011000000.

The previous prime is 200121110200967. The next prime is 200121110201011. The reversal of 200121110201001 is 100102011121002.

It is not a de Polignac number, because 200121110201001 - 2⁶ = 200121110200937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200121110201011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69119596 + ... + 71956658.

It is an arithmetic number, because the mean of its divisors is an integer number (9575261223840).

Almost surely, 2^{200121110201001} is an apocalyptic number.

It is an amenable number.

200121110201001 is a deficient number, since it is larger than the sum of its proper divisors (106287248961879).

200121110201001 is a wasteful number, since it uses less digits than its factorization.

200121110201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949597.

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

Adding to 200121110201001 its reverse (100102011121002), we get a palindrome (300223121322003).

The spelling of 200121110201001 in words is "two hundred trillion, one hundred twenty-one billion, one hundred ten million, two hundred one thousand, one".