400722532011 has 24 divisors (see below), whose sum is σ = 594508034640. Its totient is φ = 259909425216.

The previous prime is 400722532003. The next prime is 400722532031. The reversal of 400722532011 is 110235227004.

400722532011 is a `hidden beast` number, since 400 + 7 + 2 + 2 + 53 + 201 + 1 = 666.

It is not a de Polignac number, because 400722532011 - 2³ = 400722532003 is a prime.

It is a super-2 number, since 2×400722532011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400722532031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5755936 + ... + 5825138.

It is an arithmetic number, because the mean of its divisors is an integer number (24771168110).

Almost surely, 2^400722532011 is an apocalyptic number.

400722532011 is a deficient number, since it is larger than the sum of its proper divisors (193785502629).

400722532011 is a wasteful number, since it uses less digits than its factorization.

400722532011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86635 (or 86632 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 400722532011 its reverse (110235227004), we get a palindrome (510957759015).

The spelling of 400722532011 in words is "four hundred billion, seven hundred twenty-two million, five hundred thirty-two thousand, eleven".