1959921212 has 12 divisors (see below), whose sum is σ = 3610381320. Its totient is φ = 928383696.

The previous prime is 1959921199. The next prime is 1959921233. The reversal of 1959921212 is 2121299591.

It is a self number, because there is not a number n which added to its sum of digits gives 1959921212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12894143 + ... + 12894294.

It is an arithmetic number, because the mean of its divisors is an integer number (300865110).

Almost surely, 2^1959921212 is an apocalyptic number.

It is an amenable number.

1959921212 is a deficient number, since it is larger than the sum of its proper divisors (1650460108).

1959921212 is a wasteful number, since it uses less digits than its factorization.

1959921212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25788460 (or 25788458 counting only the distinct ones).

The product of its digits is 29160, while the sum is 41.

The square root of 1959921212 is about 44270.9974136567. The cubic root of 1959921212 is about 1251.4481801315.

The spelling of 1959921212 in words is "one billion, nine hundred fifty-nine million, nine hundred twenty-one thousand, two hundred twelve".