20020100012 has 36 divisors (see below), whose sum is σ = 38891117328. Its totient is φ = 9009924000.

The previous prime is 20020099991. The next prime is 20020100027. The reversal of 20020100012 is 21000102002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155888 + ... + 253655.

Almost surely, 2^20020100012 is an apocalyptic number.

20020100012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20020100012 is a deficient number, since it is larger than the sum of its proper divisors (18871017316).

20020100012 is a wasteful number, since it uses less digits than its factorization.

20020100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409670 (or 409657 counting only the distinct ones).

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

Adding to 20020100012 its reverse (21000102002), we get a palindrome (41020202014).

The spelling of 20020100012 in words is "twenty billion, twenty million, one hundred thousand, twelve".