222021221111011 has 16 divisors (see below), whose sum is σ = 256802199671808. Its totient is φ = 188006275195200.

The previous prime is 222021221110991. The next prime is 222021221111057. The reversal of 222021221111011 is 110111122120222.

It is a happy number.

It is not a de Polignac number, because 222021221111011 - 2¹⁷ = 222021220979939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222021221111011.

It is not an unprimeable number, because it can be changed into a prime (222021221151011) 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, 17929926 + ... + 27668116.

It is an arithmetic number, because the mean of its divisors is an integer number (16050137479488).

Almost surely, 2^{222021221111011} is an apocalyptic number.

222021221111011 is a deficient number, since it is larger than the sum of its proper divisors (34780978560797).

222021221111011 is an equidigital number, since it uses as much as digits as its factorization.

222021221111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9777522.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222021221111011 its reverse (110111122120222), we get a palindrome (332132343231233).

The spelling of 222021221111011 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty-one million, one hundred eleven thousand, eleven".