400211233012 has 48 divisors (see below), whose sum is σ = 747587948688. Its totient is φ = 186808033280.

The previous prime is 400211232989. The next prime is 400211233013. The reversal of 400211233012 is 210332112004.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 73937223396 + 326274009616 = 271914^2 + 571204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400211233013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11879712 + ... + 11913352.

It is an arithmetic number, because the mean of its divisors is an integer number (15574748931).

Almost surely, 2^400211233012 is an apocalyptic number.

It is an amenable number.

400211233012 is a deficient number, since it is larger than the sum of its proper divisors (347376715676).

400211233012 is a wasteful number, since it uses less digits than its factorization.

400211233012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35076 (or 35074 counting only the distinct ones).

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

Adding to 400211233012 its reverse (210332112004), we get a palindrome (610543345016).

The spelling of 400211233012 in words is "four hundred billion, two hundred eleven million, two hundred thirty-three thousand, twelve".