20121033033210 has 192 divisors, whose sum is σ = 51848534108160. Its totient is φ = 4995234817920.

The previous prime is 20121033033203. The next prime is 20121033033247. The reversal of 20121033033210 is 1233033012102.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2928396075 + ... + 2928402945.

It is an arithmetic number, because the mean of its divisors is an integer number (270044448480).

Almost surely, 2^{20121033033210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20121033033210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25924267054080).

20121033033210 is an abundant number, since it is smaller than the sum of its proper divisors (31727501074950).

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

20121033033210 is a wasteful number, since it uses less digits than its factorization.

20121033033210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11561 (or 11542 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20121033033210 its reverse (1233033012102), we get a palindrome (21354066045312).

The spelling of 20121033033210 in words is "twenty trillion, one hundred twenty-one billion, thirty-three million, thirty-three thousand, two hundred ten".