1020100012 has 24 divisors (see below), whose sum is σ = 1844099712. Its totient is φ = 493238400.

The previous prime is 1020100007. The next prime is 1020100021. The reversal of 1020100012 is 2100010201.

It is a junction number, because it is equal to n+sod(n) for n = 1020099968 and 1020100004.

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 7 ways as a sum of consecutive naturals, for example, 265062 + ... + 268882.

It is an arithmetic number, because the mean of its divisors is an integer number (76837488).

Almost surely, 2^1020100012 is an apocalyptic number.

It is an amenable number.

1020100012 is a deficient number, since it is larger than the sum of its proper divisors (823999700).

1020100012 is a wasteful number, since it uses less digits than its factorization.

1020100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009 (or 6007 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1020100012 is about 31939.0045555587. The cubic root of 1020100012 is about 1006.6556085994.

Adding to 1020100012 its reverse (2100010201), we get a palindrome (3120110213).

The spelling of 1020100012 in words is "one billion, twenty million, one hundred thousand, twelve".