200122121001 has 32 divisors (see below), whose sum is σ = 300456576000. Its totient is φ = 117414982080.

The previous prime is 200122120999. The next prime is 200122121011. The reversal of 200122121001 is 100121221002.

200122121001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200122121001 - 2¹ = 200122120999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200122121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168831 + ... + 654788.

It is an arithmetic number, because the mean of its divisors is an integer number (9389268000).

Almost surely, 2^200122121001 is an apocalyptic number.

It is an amenable number.

200122121001 is a deficient number, since it is larger than the sum of its proper divisors (100334454999).

200122121001 is a wasteful number, since it uses less digits than its factorization.

200122121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823869.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200122121001 its reverse (100121221002), we get a palindrome (300243342003).

It can be divided in two parts, 200122 and 121001, that added together give a palindrome (321123).

The spelling of 200122121001 in words is "two hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, one".