1200401401201 has 4 divisors (see below), whose sum is σ = 1203568687600. Its totient is φ = 1197234114804.

The previous prime is 1200401401163. The next prime is 1200401401291. The reversal of 1200401401201 is 1021041040021.

It is a happy number.

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 1200401401201 - 2³³ = 1191811466609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200401401291) 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, 1583642631 + ... + 1583643388.

It is an arithmetic number, because the mean of its divisors is an integer number (300892171900).

Almost surely, 2^{1200401401201} is an apocalyptic number.

It is an amenable number.

1200401401201 is a deficient number, since it is larger than the sum of its proper divisors (3167286399).

1200401401201 is an equidigital number, since it uses as much as digits as its factorization.

1200401401201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167286398.

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

Adding to 1200401401201 its reverse (1021041040021), we get a palindrome (2221442441222).

The spelling of 1200401401201 in words is "one trillion, two hundred billion, four hundred one million, four hundred one thousand, two hundred one".