401330221201 has 32 divisors (see below), whose sum is σ = 505984308480. Its totient is φ = 309874968576.

The previous prime is 401330221183. The next prime is 401330221213. The reversal of 401330221201 is 102122033104.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 401330221201 - 2⁷ = 401330221073 is a prime.

It is a super-2 number, since 2×401330221201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401330221291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462745 + ... + 1008361.

It is an arithmetic number, because the mean of its divisors is an integer number (15812009640).

Almost surely, 2^401330221201 is an apocalyptic number.

It is an amenable number.

401330221201 is a deficient number, since it is larger than the sum of its proper divisors (104654087279).

401330221201 is a wasteful number, since it uses less digits than its factorization.

401330221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545833.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 401330221201 its reverse (102122033104), we get a palindrome (503452254305).

The spelling of 401330221201 in words is "four hundred one billion, three hundred thirty million, two hundred twenty-one thousand, two hundred one".