1200122122201 has 16 divisors (see below), whose sum is σ = 1272843262080. Its totient is φ = 1127638621440.

The previous prime is 1200122122189. The next prime is 1200122122223. The reversal of 1200122122201 is 1022212210021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1200122122201 - 2³⁵ = 1165762383833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200122122501) 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, 28210935 + ... + 28253443.

It is an arithmetic number, because the mean of its divisors is an integer number (79552703880).

Almost surely, 2^{1200122122201} is an apocalyptic number.

It is an amenable number.

1200122122201 is a deficient number, since it is larger than the sum of its proper divisors (72721139879).

1200122122201 is a wasteful number, since it uses less digits than its factorization.

1200122122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45264.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1200122122201 its reverse (1022212210021), we get a palindrome (2222334332222).

The spelling of 1200122122201 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred one".