20120020200111 has 32 divisors (see below), whose sum is σ = 29976749780992. Its totient is φ = 11920062228480.

The previous prime is 20120020200067. The next prime is 20120020200143. The reversal of 20120020200111 is 11100202002102.

It is a de Polignac number, because none of the positive numbers 2^k-20120020200111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120020200811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42880315 + ... + 43346988.

It is an arithmetic number, because the mean of its divisors is an integer number (936773430656).

Almost surely, 2^{20120020200111} is an apocalyptic number.

20120020200111 is a deficient number, since it is larger than the sum of its proper divisors (9856729580881).

20120020200111 is a wasteful number, since it uses less digits than its factorization.

20120020200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86227543.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20120020200111 its reverse (11100202002102), we get a palindrome (31220222202213).

The spelling of 20120020200111 in words is "twenty trillion, one hundred twenty billion, twenty million, two hundred thousand, one hundred eleven".