210422013256 has 192 divisors, whose sum is σ = 500086379520. Its totient is φ = 80827891200.

The previous prime is 210422013229. The next prime is 210422013287. The reversal of 210422013256 is 652310224012.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300173706 + ... + 300174406.

It is an arithmetic number, because the mean of its divisors is an integer number (2604616560).

Almost surely, 2^210422013256 is an apocalyptic number.

210422013256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210422013256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250043189760).

210422013256 is an abundant number, since it is smaller than the sum of its proper divisors (289664366264).

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

210422013256 is a wasteful number, since it uses less digits than its factorization.

210422013256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 210422013256 its reverse (652310224012), we get a palindrome (862732237268).

The spelling of 210422013256 in words is "two hundred ten billion, four hundred twenty-two million, thirteen thousand, two hundred fifty-six".