331012212102 has 96 divisors (see below), whose sum is σ = 842892130080. Its totient is φ = 92556149760.

The previous prime is 331012212101. The next prime is 331012212131. The reversal of 331012212102 is 201212210133.

331012212102 is a `hidden beast` number, since 331 + 0 + 122 + 1 + 210 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331012212101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7279774 + ... + 7325102.

It is an arithmetic number, because the mean of its divisors is an integer number (8780126355).

Almost surely, 2^331012212102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331012212102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421446065040).

331012212102 is an abundant number, since it is smaller than the sum of its proper divisors (511879917978).

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

331012212102 is a wasteful number, since it uses less digits than its factorization.

331012212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48198 (or 48195 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 331012212102 its reverse (201212210133), we get a palindrome (532224422235).

The spelling of 331012212102 in words is "three hundred thirty-one billion, twelve million, two hundred twelve thousand, one hundred two".