400311221244200 has 96 divisors (see below), whose sum is σ = 1063691498136960. Its totient is φ = 137248607251200.

The previous prime is 400311221244199. The next prime is 400311221244217. The reversal of 400311221244200 is 2442122113004.

It is a self number, because there is not a number n which added to its sum of digits gives 400311221244200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217583354 + ... + 219415446.

It is an arithmetic number, because the mean of its divisors is an integer number (11080119772260).

Almost surely, 2^{400311221244200} is an apocalyptic number.

400311221244200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400311221244200 is an abundant number, since it is smaller than the sum of its proper divisors (663380276892760).

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

400311221244200 is a wasteful number, since it uses less digits than its factorization.

400311221244200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988187 (or 1988178 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 400311221244200 its reverse (2442122113004), we get a palindrome (402753343357204).

The spelling of 400311221244200 in words is "four hundred trillion, three hundred eleven billion, two hundred twenty-one million, two hundred forty-four thousand, two hundred".