20000000202012 has 18 divisors (see below), whose sum is σ = 50555556066288. Its totient is φ = 6666666733992.

The previous prime is 20000000201971. The next prime is 20000000202053. The reversal of 20000000202012 is 21020200000002.

It is an interprime number because it is at equal distance from previous prime (20000000201971) and next prime (20000000202053).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20000000201985 and 20000000202003.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 277777780548 + ... + 277777780619.

Almost surely, 2^{20000000202012} is an apocalyptic number.

It is an amenable number.

20000000202012 is an abundant number, since it is smaller than the sum of its proper divisors (30555555864276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20000000202012 is a wasteful number, since it uses less digits than its factorization.

20000000202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555555561177 (or 555555561172 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20000000202012 its reverse (21020200000002), we get a palindrome (41020200202014).

The spelling of 20000000202012 in words is "twenty trillion, two hundred two thousand, twelve".