200120020001 has 32 divisors (see below), whose sum is σ = 226067210496. Its totient is φ = 175609728000.

The previous prime is 200120019997. The next prime is 200120020031. The reversal of 200120020001 is 100020021002.

It is a cyclic number.

It is not a de Polignac number, because 200120020001 - 2² = 200120019997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200120020031) 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, 7797971 + ... + 7823591.

It is an arithmetic number, because the mean of its divisors is an integer number (7064600328).

Almost surely, 2^200120020001 is an apocalyptic number.

It is an amenable number.

200120020001 is a deficient number, since it is larger than the sum of its proper divisors (25947190495).

200120020001 is a wasteful number, since it uses less digits than its factorization.

200120020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25913.

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

Adding to 200120020001 its reverse (100020021002), we get a palindrome (300140041003).

It can be divided in two parts, 2001 and 20020001, that added together give a palindrome (20022002).

The spelling of 200120020001 in words is "two hundred billion, one hundred twenty million, twenty thousand, one".