331012012002 has 64 divisors (see below), whose sum is σ = 773131751424. Its totient is φ = 92510519040.

The previous prime is 331012011977. The next prime is 331012012003. The reversal of 331012012002 is 200210210133.

It is a super-2 number, since 2×331012012002² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331012012003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3528618 + ... + 3621210.

It is an arithmetic number, because the mean of its divisors is an integer number (12080183616).

Almost surely, 2^331012012002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331012012002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386565875712).

331012012002 is an abundant number, since it is smaller than the sum of its proper divisors (442119739422).

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

331012012002 is a wasteful number, since it uses less digits than its factorization.

331012012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94463.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 331012012002 its reverse (200210210133), we get a palindrome (531222222135).

The spelling of 331012012002 in words is "three hundred thirty-one billion, twelve million, twelve thousand, two".