402333044221 has 8 divisors (see below), whose sum is σ = 416271130200. Its totient is φ = 388399260480.

The previous prime is 402333044171. The next prime is 402333044261. The reversal of 402333044221 is 122440333204.

It can be written as a sum of positive squares in 4 ways, for example, as 15753764196 + 386579280025 = 125514^2 + 621755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402333044221 - 2²¹ = 402330947069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402333044221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402333044261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884710 + ... + 1259911.

It is an arithmetic number, because the mean of its divisors is an integer number (52033891275).

Almost surely, 2^402333044221 is an apocalyptic number.

It is an amenable number.

402333044221 is a deficient number, since it is larger than the sum of its proper divisors (13938085979).

402333044221 is a wasteful number, since it uses less digits than its factorization.

402333044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151119.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 402333044221 its reverse (122440333204), we get a palindrome (524773377425).

The spelling of 402333044221 in words is "four hundred two billion, three hundred thirty-three million, forty-four thousand, two hundred twenty-one".