22111220011011 has 8 divisors (see below), whose sum is σ = 29785560977424. Its totient is φ = 14588846192640.

The previous prime is 22111220010977. The next prime is 22111220011019. The reversal of 22111220011011 is 11011002211122.

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 22111220011011 - 2²² = 22111215816707 is a prime.

It is a super-2 number, since 2×22111220011011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22111220011019) 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, 37991786670 + ... + 37991787251.

It is an arithmetic number, because the mean of its divisors is an integer number (3723195122178).

Almost surely, 2^{22111220011011} is an apocalyptic number.

22111220011011 is a deficient number, since it is larger than the sum of its proper divisors (7674340966413).

22111220011011 is an equidigital number, since it uses as much as digits as its factorization.

22111220011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75983574021.

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

Adding to 22111220011011 its reverse (11011002211122), we get a palindrome (33122222222133).

The spelling of 22111220011011 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, eleven thousand, eleven".