220101011111 has 8 divisors (see below), whose sum is σ = 223413876000. Its totient is φ = 216794058880.

The previous prime is 220101011101. The next prime is 220101011213. The reversal of 220101011111 is 111110101022.

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 220101011111 - 2⁶ = 220101011047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220101011092 and 220101011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220101011101) 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, 1403126 + ... + 1552083.

It is an arithmetic number, because the mean of its divisors is an integer number (27926734500).

Almost surely, 2^220101011111 is an apocalyptic number.

220101011111 is a deficient number, since it is larger than the sum of its proper divisors (3312864889).

220101011111 is a wasteful number, since it uses less digits than its factorization.

220101011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956329.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 220101011111 its reverse (111110101022), we get a palindrome (331211112133).

The spelling of 220101011111 in words is "two hundred twenty billion, one hundred one million, eleven thousand, one hundred eleven".