200120060021001 has 4 divisors (see below), whose sum is σ = 266826746694672. Its totient is φ = 133413373347332.

The previous prime is 200120060020973. The next prime is 200120060021059. The reversal of 200120060021001 is 100120060021002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200120060021001 - 2⁷ = 200120060020873 is a prime.

It is a super-2 number, since 2×200120060021001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200120060021501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33353343336831 + ... + 33353343336836.

It is an arithmetic number, because the mean of its divisors is an integer number (66706686673668).

Almost surely, 2^{200120060021001} is an apocalyptic number.

It is an amenable number.

200120060021001 is a deficient number, since it is larger than the sum of its proper divisors (66706686673671).

200120060021001 is an equidigital number, since it uses as much as digits as its factorization.

200120060021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66706686673670.

The product of its (nonzero) digits is 48, while the sum is 15.

Subtracting from 200120060021001 its reverse (100120060021002), we obtain a palindrome (99999999999999).

The spelling of 200120060021001 in words is "two hundred trillion, one hundred twenty billion, sixty million, twenty-one thousand, one".