10819998212 has 6 divisors (see below), whose sum is σ = 18934996878. Its totient is φ = 5409999104.

The previous prime is 10819998199. The next prime is 10819998227. The reversal of 10819998212 is 21289991801.

It can be written as a sum of positive squares in only one way, i.e., 9544508416 + 1275489796 = 97696^2 + 35714^2 .

It is a super-2 number, since 2×10819998212² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352499773 + ... + 1352499780.

It is an arithmetic number, because the mean of its divisors is an integer number (3155832813).

Almost surely, 2^10819998212 is an apocalyptic number.

It is an amenable number.

10819998212 is a deficient number, since it is larger than the sum of its proper divisors (8114998666).

10819998212 is a wasteful number, since it uses less digits than its factorization.

10819998212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704999557 (or 2704999555 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 10819998212 in words is "ten billion, eight hundred nineteen million, nine hundred ninety-eight thousand, two hundred twelve".