20020111100002 has 12 divisors (see below), whose sum is σ = 32517872763570. Its totient is φ = 9240051276768.

The previous prime is 20020111099993. The next prime is 20020111100029. The reversal of 20020111100002 is 20000111102002.

It can be written as a sum of positive squares in 3 ways, for example, as 7389486526321 + 12630624573681 = 2718361^2 + 3553959^2 .

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, 29615548627 + ... + 29615549302.

Almost surely, 2^{20020111100002} is an apocalyptic number.

20020111100002 is a deficient number, since it is larger than the sum of its proper divisors (12497761663568).

20020111100002 is a wasteful number, since it uses less digits than its factorization.

20020111100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59231097957 (or 59231097944 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20020111100002 its reverse (20000111102002), we get a palindrome (40020222202004).

It can be divided in two parts, 2002011 and 1100002, that added together give a palindrome (3102013).

The spelling of 20020111100002 in words is "twenty trillion, twenty billion, one hundred eleven million, one hundred thousand, two".