20231211210210 has 768 divisors, whose sum is σ = 71558998318080. Its totient is φ = 3829385134080.

The previous prime is 20231211210131. The next prime is 20231211210233. The reversal of 20231211210210 is 1201211213202.

20231211210210 is a `hidden beast` number, since 2 + 0 + 2 + 31 + 211 + 210 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 4626389584 + ... + 4626393956.

It is an arithmetic number, because the mean of its divisors is an integer number (93175779060).

Almost surely, 2^{20231211210210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231211210210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35779499159040).

20231211210210 is an abundant number, since it is smaller than the sum of its proper divisors (51327787107870).

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

20231211210210 is a wasteful number, since it uses less digits than its factorization.

20231211210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083 (or 5080 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20231211210210 its reverse (1201211213202), we get a palindrome (21432422423412).

The spelling of 20231211210210 in words is "twenty trillion, two hundred thirty-one billion, two hundred eleven million, two hundred ten thousand, two hundred ten".