402041444233221 has 48 divisors (see below), whose sum is σ = 633288923082816. Its totient is φ = 244291712583168.

The previous prime is 402041444233201. The next prime is 402041444233229. The reversal of 402041444233221 is 122332444140204.

402041444233221 is a `hidden beast` number, since 4 + 0 + 2 + 0 + 4 + 1 + 4 + 4 + 423 + 3 + 221 = 666.

It is not a de Polignac number, because 402041444233221 - 2²⁷ = 402041310015493 is a prime.

It is a super-2 number, since 2×402041444233221² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402041444233229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5607426 + ... + 28905468.

It is an arithmetic number, because the mean of its divisors is an integer number (13193519230892).

Almost surely, 2^{402041444233221} is an apocalyptic number.

It is an amenable number.

402041444233221 is a deficient number, since it is larger than the sum of its proper divisors (231247478849595).

402041444233221 is a wasteful number, since it uses less digits than its factorization.

402041444233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23299922 (or 23299919 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 402041444233221 its reverse (122332444140204), we get a palindrome (524373888373425).

The spelling of 402041444233221 in words is "four hundred two trillion, forty-one billion, four hundred forty-four million, two hundred thirty-three thousand, two hundred twenty-one".