400302231222 has 32 divisors (see below), whose sum is σ = 809000260992. Its totient is φ = 132035261184.

The previous prime is 400302231221. The next prime is 400302231227. The reversal of 400302231222 is 222132203004.

It is a super-2 number, since 2×400302231222² (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 (400302231221) 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, 3426993 + ... + 3541875.

It is an arithmetic number, because the mean of its divisors is an integer number (25281258156).

Almost surely, 2^400302231222 is an apocalyptic number.

400302231222 is an abundant number, since it is smaller than the sum of its proper divisors (408698029770).

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

400302231222 is a wasteful number, since it uses less digits than its factorization.

400302231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120972.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 400302231222 its reverse (222132203004), we get a palindrome (622434434226).

The spelling of 400302231222 in words is "four hundred billion, three hundred two million, two hundred thirty-one thousand, two hundred twenty-two".