402201444101 has 4 divisors (see below), whose sum is σ = 402438453132. Its totient is φ = 401964435072.

The previous prime is 402201444097. The next prime is 402201444103. The reversal of 402201444101 is 101444102204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 254918961025 + 147282483076 = 504895^2 + 383774^2 .

It is a cyclic number.

It is not a de Polignac number, because 402201444101 - 2² = 402201444097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402201444103) 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, 118501970 + ... + 118505363.

It is an arithmetic number, because the mean of its divisors is an integer number (100609613283).

Almost surely, 2^402201444101 is an apocalyptic number.

It is an amenable number.

402201444101 is a deficient number, since it is larger than the sum of its proper divisors (237009031).

402201444101 is a wasteful number, since it uses less digits than its factorization.

402201444101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237009030.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 402201444101 its reverse (101444102204), we get a palindrome (503645546305).

The spelling of 402201444101 in words is "four hundred two billion, two hundred one million, four hundred forty-four thousand, one hundred one".