102012212331 has 12 divisors (see below), whose sum is σ = 147419441208. Its totient is φ = 67976541024.

The previous prime is 102012212293. The next prime is 102012212339. The reversal of 102012212331 is 133212210201.

102012212331 is a `hidden beast` number, since 10 + 201 + 221 + 233 + 1 = 666.

It is not a de Polignac number, because 102012212331 - 2¹⁴ = 102012195947 is a prime.

It is a super-2 number, since 2×102012212331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102012212339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2612925 + ... + 2651678.

It is an arithmetic number, because the mean of its divisors is an integer number (12284953434).

Almost surely, 2^102012212331 is an apocalyptic number.

102012212331 is a deficient number, since it is larger than the sum of its proper divisors (45407228877).

102012212331 is a wasteful number, since it uses less digits than its factorization.

102012212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266762 (or 5266759 counting only the distinct ones).

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

Adding to 102012212331 its reverse (133212210201), we get a palindrome (235224422532).

The spelling of 102012212331 in words is "one hundred two billion, twelve million, two hundred twelve thousand, three hundred thirty-one".