20022010201111 has 4 divisors (see below), whose sum is σ = 20892532383792. Its totient is φ = 19151488018432.

The previous prime is 20022010201049. The next prime is 20022010201121. The reversal of 20022010201111 is 11110201022002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022010201111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022010201091 and 20022010201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022010201121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435261091306 + ... + 435261091351.

It is an arithmetic number, because the mean of its divisors is an integer number (5223133095948).

Almost surely, 2^{20022010201111} is an apocalyptic number.

20022010201111 is a deficient number, since it is larger than the sum of its proper divisors (870522182681).

20022010201111 is an equidigital number, since it uses as much as digits as its factorization.

20022010201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870522182680.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20022010201111 its reverse (11110201022002), we get a palindrome (31132211223113).

The spelling of 20022010201111 in words is "twenty trillion, twenty-two billion, ten million, two hundred one thousand, one hundred eleven".