402122334401 has 4 divisors (see below), whose sum is σ = 402124165332. Its totient is φ = 402120503472.

The previous prime is 402122334389. The next prime is 402122334407. The reversal of 402122334401 is 104433221204.

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 2527676176 + 399594658225 = 50276^2 + 632135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402122334401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402122334407) 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, 532670 + ... + 1043063.

It is an arithmetic number, because the mean of its divisors is an integer number (100531041333).

Almost surely, 2^402122334401 is an apocalyptic number.

It is an amenable number.

402122334401 is a deficient number, since it is larger than the sum of its proper divisors (1830931).

402122334401 is a wasteful number, since it uses less digits than its factorization.

402122334401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830930.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 402122334401 its reverse (104433221204), we get a palindrome (506555555605).

The spelling of 402122334401 in words is "four hundred two billion, one hundred twenty-two million, three hundred thirty-four thousand, four hundred one".