39102021212 has 24 divisors (see below), whose sum is σ = 68907132000. Its totient is φ = 19414542656.

The previous prime is 39102021197. The next prime is 39102021221. The reversal of 39102021212 is 21212020193.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 546914 + ... + 614262.

It is an arithmetic number, because the mean of its divisors is an integer number (2871130500).

Almost surely, 2^39102021212 is an apocalyptic number.

It is an amenable number.

39102021212 is a deficient number, since it is larger than the sum of its proper divisors (29805110788).

39102021212 is a wasteful number, since it uses less digits than its factorization.

39102021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68365 (or 68363 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 39102021212 in words is "thirty-nine billion, one hundred two million, twenty-one thousand, two hundred twelve".