220011201111 has 16 divisors (see below), whose sum is σ = 315983251584. Its totient is φ = 135361623264.

The previous prime is 220011201101. The next prime is 220011201121. The reversal of 220011201111 is 111102110022.

It is an interprime number because it is at equal distance from previous prime (220011201101) and next prime (220011201121).

It is not a de Polignac number, because 220011201111 - 2¹⁴ = 220011184727 is a prime.

It is a super-2 number, since 2×220011201111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220011201101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443001 + ... + 797666.

It is an arithmetic number, because the mean of its divisors is an integer number (19748953224).

Almost surely, 2^220011201111 is an apocalyptic number.

220011201111 is a deficient number, since it is larger than the sum of its proper divisors (95972050473).

220011201111 is a wasteful number, since it uses less digits than its factorization.

220011201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245230.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 220011201111 its reverse (111102110022), we get a palindrome (331113311133).

The spelling of 220011201111 in words is "two hundred twenty billion, eleven million, two hundred one thousand, one hundred eleven".