211420200331024 has 80 divisors (see below), whose sum is σ = 429377277381120. Its totient is φ = 100655051143680.

The previous prime is 211420200330799. The next prime is 211420200331031. The reversal of 211420200331024 is 420133002024112.

It is a super-2 number, since 2×211420200331024² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211420200331024.

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, 493704169 + ... + 494132215.

It is an arithmetic number, because the mean of its divisors is an integer number (5367215967264).

Almost surely, 2^{211420200331024} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211420200331024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214688638690560).

211420200331024 is an abundant number, since it is smaller than the sum of its proper divisors (217957077050096).

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

211420200331024 is a wasteful number, since it uses less digits than its factorization.

211420200331024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434168 (or 434162 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211420200331024 its reverse (420133002024112), we get a palindrome (631553202355136).

The spelling of 211420200331024 in words is "two hundred eleven trillion, four hundred twenty billion, two hundred million, three hundred thirty-one thousand, twenty-four".