20012200111 has 8 divisors (see below), whose sum is σ = 20892342240. Its totient is φ = 19132895232.

The previous prime is 20012200099. The next prime is 20012200139. The reversal of 20012200111 is 11100221002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20012200111 - 2²⁵ = 19978645679 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 (20012200511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160210 + ... + 256303.

It is an arithmetic number, because the mean of its divisors is an integer number (2611542780).

Almost surely, 2^20012200111 is an apocalyptic number.

20012200111 is a deficient number, since it is larger than the sum of its proper divisors (880142129).

20012200111 is a wasteful number, since it uses less digits than its factorization.

20012200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418625.

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

Adding to 20012200111 its reverse (11100221002), we get a palindrome (31112421113).

The spelling of 20012200111 in words is "twenty billion, twelve million, two hundred thousand, one hundred eleven".