1201201200001 has 4 divisors (see below), whose sum is σ = 1310401309104. Its totient is φ = 1092001090900.

The previous prime is 1201201199917. The next prime is 1201201200041. The reversal of 1201201200001 is 1000021021021.

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 1201201200001 - 2⁷ = 1201201199873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201201200041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54600054535 + ... + 54600054556.

It is an arithmetic number, because the mean of its divisors is an integer number (327600327276).

Almost surely, 2^{1201201200001} is an apocalyptic number.

1201201200001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201201200001 is a deficient number, since it is larger than the sum of its proper divisors (109200109103).

1201201200001 is a wasteful number, since it uses less digits than its factorization.

1201201200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109200109102.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1201201200001 its reverse (1000021021021), we get a palindrome (2201222221022).

The spelling of 1201201200001 in words is "one trillion, two hundred one billion, two hundred one million, two hundred thousand, one".