400211222232120 has 128 divisors (see below), whose sum is σ = 1312288462679040. Its totient is φ = 97043180382720.

The previous prime is 400211222232077. The next prime is 400211222232121. The reversal of 400211222232120 is 21232222112004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400211222232121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1914415296 + ... + 1914624335.

It is an arithmetic number, because the mean of its divisors is an integer number (10252253614680).

Almost surely, 2^{400211222232120} is an apocalyptic number.

400211222232120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400211222232120 is an abundant number, since it is smaller than the sum of its proper divisors (912077240446920).

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

400211222232120 is a wasteful number, since it uses less digits than its factorization.

400211222232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829039725 (or 3829039721 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 400211222232120 its reverse (21232222112004), we get a palindrome (421443444344124).

The spelling of 400211222232120 in words is "four hundred trillion, two hundred eleven billion, two hundred twenty-two million, two hundred thirty-two thousand, one hundred twenty".