331121201203212 has 192 divisors, whose sum is σ = 941842536606720. Its totient is φ = 88382822621184.

The previous prime is 331121201203159. The next prime is 331121201203249. The reversal of 331121201203212 is 212302102121133.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2265196158 + ... + 2265342330.

It is an arithmetic number, because the mean of its divisors is an integer number (4905429878160).

Almost surely, 2^{331121201203212} 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 331121201203212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470921268303360).

331121201203212 is an abundant number, since it is smaller than the sum of its proper divisors (610721335403508).

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

331121201203212 is a wasteful number, since it uses less digits than its factorization.

331121201203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157920 (or 157918 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 331121201203212 its reverse (212302102121133), we get a palindrome (543423303324345).

The spelling of 331121201203212 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, two hundred one million, two hundred three thousand, two hundred twelve".