1020020012 has 24 divisors (see below), whose sum is σ = 1951783680. Its totient is φ = 462580560.

The previous prime is 1020019969. The next prime is 1020020041. The reversal of 1020020012 is 2100200201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7088 + ... + 45719.

It is an arithmetic number, because the mean of its divisors is an integer number (81324320).

Almost surely, 2^1020020012 is an apocalyptic number.

It is an amenable number.

1020020012 is a deficient number, since it is larger than the sum of its proper divisors (931763668).

1020020012 is a wasteful number, since it uses less digits than its factorization.

1020020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53261 (or 53259 counting only the distinct ones).

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

The square root of 1020020012 is about 31937.7521438188. The cubic root of 1020020012 is about 1006.6292926980.

Adding to 1020020012 its reverse (2100200201), we get a palindrome (3120220213).

The spelling of 1020020012 in words is "one billion, twenty million, twenty thousand, twelve".