401252512270 has 16 divisors (see below), whose sum is σ = 724140311040. Its totient is φ = 160081940704.

The previous prime is 401252512259. The next prime is 401252512279. The reversal of 401252512270 is 72215252104.

It is a happy number.

It is a super-2 number, since 2×401252512270² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401252512279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52379005 + ... + 52386664.

It is an arithmetic number, because the mean of its divisors is an integer number (45258769440).

Almost surely, 2^401252512270 is an apocalyptic number.

401252512270 is a deficient number, since it is larger than the sum of its proper divisors (322887798770).

401252512270 is a wasteful number, since it uses less digits than its factorization.

401252512270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104766059.

The product of its (nonzero) digits is 11200, while the sum is 31.

Adding to 401252512270 its reverse (72215252104), we get a palindrome (473467764374).

The spelling of 401252512270 in words is "four hundred one billion, two hundred fifty-two million, five hundred twelve thousand, two hundred seventy".