862121120212 has 12 divisors (see below), whose sum is σ = 1645867593216. Its totient is φ = 391873236440.

The previous prime is 862121120167. The next prime is 862121120251. The reversal of 862121120212 is 212021121268.

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 3 ways as a sum of consecutive naturals, for example, 9796830868 + ... + 9796830955.

It is an arithmetic number, because the mean of its divisors is an integer number (137155632768).

Almost surely, 2^862121120212 is an apocalyptic number.

It is an amenable number.

862121120212 is a deficient number, since it is larger than the sum of its proper divisors (783746473004).

862121120212 is a wasteful number, since it uses less digits than its factorization.

862121120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19593661838 (or 19593661836 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 862121120212 in words is "eight hundred sixty-two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".