20012211102111 has 8 divisors (see below), whose sum is σ = 26683420718640. Its totient is φ = 13341237776832.

The previous prime is 20012211102053. The next prime is 20012211102139. The reversal of 20012211102111 is 11120111221002.

It is a happy number.

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

It is not a de Polignac number, because 20012211102111 - 2⁹ = 20012211101599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012211107111) 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, 58875100 + ... + 59214033.

It is an arithmetic number, because the mean of its divisors is an integer number (3335427589830).

Almost surely, 2^{20012211102111} is an apocalyptic number.

20012211102111 is a deficient number, since it is larger than the sum of its proper divisors (6671209616529).

20012211102111 is a wasteful number, since it uses less digits than its factorization.

20012211102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118145625.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20012211102111 its reverse (11120111221002), we get a palindrome (31132322323113).

The spelling of 20012211102111 in words is "twenty trillion, twelve billion, two hundred eleven million, one hundred two thousand, one hundred eleven".