400212231330 has 32 divisors (see below), whose sum is σ = 993630369600. Its totient is φ = 103043148992.

The previous prime is 400212231319. The next prime is 400212231343. The reversal of 400212231330 is 33132212004.

It is a super-2 number, since 2×400212231330² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400212231297 and 400212231306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230006160 + ... + 230007899.

It is an arithmetic number, because the mean of its divisors is an integer number (31050949050).

Almost surely, 2^400212231330 is an apocalyptic number.

400212231330 is an abundant number, since it is smaller than the sum of its proper divisors (593418138270).

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

400212231330 is a wasteful number, since it uses less digits than its factorization.

400212231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460014098.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 400212231330 its reverse (33132212004), we get a palindrome (433344443334).

The spelling of 400212231330 in words is "four hundred billion, two hundred twelve million, two hundred thirty-one thousand, three hundred thirty".