1201100220201 has 16 divisors (see below), whose sum is σ = 1844219317248. Its totient is φ = 681103722000.

The previous prime is 1201100220167. The next prime is 1201100220211. The reversal of 1201100220201 is 1020220011021.

It is not a de Polignac number, because 1201100220201 - 2⁹ = 1201100219689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201100220211) 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, 218299725 + ... + 218305226.

It is an arithmetic number, because the mean of its divisors is an integer number (115263707328).

Almost surely, 2^{1201100220201} is an apocalyptic number.

It is an amenable number.

1201100220201 is a deficient number, since it is larger than the sum of its proper divisors (643119097047).

1201100220201 is a wasteful number, since it uses less digits than its factorization.

1201100220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436605092.

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

Adding to 1201100220201 its reverse (1020220011021), we get a palindrome (2221320231222).

The spelling of 1201100220201 in words is "one trillion, two hundred one billion, one hundred million, two hundred twenty thousand, two hundred one".