1020200012 has 12 divisors (see below), whose sum is σ = 1922684736. Its totient is φ = 470861520.

The previous prime is 1020199979. The next prime is 1020200023. The reversal of 1020200012 is 2100020201.

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, 9809564 + ... + 9809667.

It is an arithmetic number, because the mean of its divisors is an integer number (160223728).

Almost surely, 2^1020200012 is an apocalyptic number.

It is an amenable number.

1020200012 is a deficient number, since it is larger than the sum of its proper divisors (902484724).

1020200012 is a wasteful number, since it uses less digits than its factorization.

1020200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19619248 (or 19619246 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1020200012 is about 31940.5700011756. The cubic root of 1020200012 is about 1006.6885015414.

Adding to 1020200012 its reverse (2100020201), we get a palindrome (3120220213).

The spelling of 1020200012 in words is "one billion, twenty million, two hundred thousand, twelve".