200122120001 has 16 divisors (see below), whose sum is σ = 205227000000. Its totient is φ = 195076689600.

The previous prime is 200122119991. The next prime is 200122120007. The reversal of 200122120001 is 100021221002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200122120001 - 2¹⁴ = 200122103617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200122120007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10664375 + ... + 10683123.

It is an arithmetic number, because the mean of its divisors is an integer number (12826687500).

Almost surely, 2^200122120001 is an apocalyptic number.

It is an amenable number.

200122120001 is a deficient number, since it is larger than the sum of its proper divisors (5104879999).

200122120001 is a wasteful number, since it uses less digits than its factorization.

200122120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20320.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200122120001 its reverse (100021221002), we get a palindrome (300143341003).

The spelling of 200122120001 in words is "two hundred billion, one hundred twenty-two million, one hundred twenty thousand, one".