220111202011 has 4 divisors (see below), whose sum is σ = 220234653712. Its totient is φ = 219987750312.

The previous prime is 220111201993. The next prime is 220111202057. The reversal of 220111202011 is 110202111022.

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

It is a cyclic number.

It is not a de Polignac number, because 220111202011 - 2¹⁷ = 220111070939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220111201982 and 220111202000.

It is not an unprimeable number, because it can be changed into a prime (220111202081) 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, 61723176 + ... + 61726741.

It is an arithmetic number, because the mean of its divisors is an integer number (55058663428).

Almost surely, 2^220111202011 is an apocalyptic number.

220111202011 is a deficient number, since it is larger than the sum of its proper divisors (123451701).

220111202011 is a wasteful number, since it uses less digits than its factorization.

220111202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123451700.

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

Adding to 220111202011 its reverse (110202111022), we get a palindrome (330313313033).

The spelling of 220111202011 in words is "two hundred twenty billion, one hundred eleven million, two hundred two thousand, eleven".