401221733352 has 64 divisors (see below), whose sum is σ = 1114887188160. Its totient is φ = 119288332800.

The previous prime is 401221733303. The next prime is 401221733371. The reversal of 401221733352 is 253337122104.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14323549 + ... + 14351532.

It is an arithmetic number, because the mean of its divisors is an integer number (17420112315).

Almost surely, 2^401221733352 is an apocalyptic number.

It is an amenable number.

401221733352 is an abundant number, since it is smaller than the sum of its proper divisors (713665454808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401221733352 is a wasteful number, since it uses less digits than its factorization.

401221733352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28675154 (or 28675150 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 401221733352 its reverse (253337122104), we get a palindrome (654558855456).

The spelling of 401221733352 in words is "four hundred one billion, two hundred twenty-one million, seven hundred thirty-three thousand, three hundred fifty-two".