39123012212 has 12 divisors (see below), whose sum is σ = 70673828736. Its totient is φ = 18930489720.

The previous prime is 39123012197. The next prime is 39123012217. The reversal of 39123012212 is 21221032193.

It is a super-2 number, since 2×39123012212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39123012217) 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 3 ways as a sum of consecutive naturals, for example, 157753958 + ... + 157754205.

It is an arithmetic number, because the mean of its divisors is an integer number (5889485728).

Almost surely, 2^39123012212 is an apocalyptic number.

It is an amenable number.

39123012212 is a deficient number, since it is larger than the sum of its proper divisors (31550816524).

39123012212 is a wasteful number, since it uses less digits than its factorization.

39123012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315508198 (or 315508196 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 39123012212 in words is "thirty-nine billion, one hundred twenty-three million, twelve thousand, two hundred twelve".