2221222221011 has 4 divisors (see below), whose sum is σ = 2221281266232. Its totient is φ = 2221163175792.

The previous prime is 2221222220993. The next prime is 2221222221047. The reversal of 2221222221011 is 1101222221222.

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 2221222221011 - 2⁶ = 2221222220947 is a prime.

It is a super-2 number, since 2×2221222221011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221222221511) 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, 29466146 + ... + 29541431.

It is an arithmetic number, because the mean of its divisors is an integer number (555320316558).

Almost surely, 2^{2221222221011} is an apocalyptic number.

2221222221011 is a deficient number, since it is larger than the sum of its proper divisors (59045221).

2221222221011 is an equidigital number, since it uses as much as digits as its factorization.

2221222221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59045220.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2221222221011 its reverse (1101222221222), we get a palindrome (3322444442233).

The spelling of 2221222221011 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, eleven".