401002003112221 has 144 divisors (see below), whose sum is σ = 496072590874560. Its totient is φ = 323075721830400.

The previous prime is 401002003112201. The next prime is 401002003112279. The reversal of 401002003112221 is 122211300200104.

It is not a de Polignac number, because 401002003112221 - 2⁵ = 401002003112189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401002003112201) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 167853495295 + ... + 167853497683.

It is an arithmetic number, because the mean of its divisors is an integer number (3444948547740).

Almost surely, 2^{401002003112221} is an apocalyptic number.

It is an amenable number.

401002003112221 is a deficient number, since it is larger than the sum of its proper divisors (95070587762339).

401002003112221 is a wasteful number, since it uses less digits than its factorization.

401002003112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 401002003112221 its reverse (122211300200104), we get a palindrome (523213303312325).

The spelling of 401002003112221 in words is "four hundred one trillion, two billion, three million, one hundred twelve thousand, two hundred twenty-one".