2222021021111 has 4 divisors (see below), whose sum is σ = 2222547695400. Its totient is φ = 2221494346824.

The previous prime is 2222021021063. The next prime is 2222021021119. The reversal of 2222021021111 is 1111201202222.

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 2222021021111 - 2²² = 2222016826807 is a prime.

It is a super-2 number, since 2×2222021021111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222021021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222021021119) 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, 263330816 + ... + 263339253.

It is an arithmetic number, because the mean of its divisors is an integer number (555636923850).

Almost surely, 2^{2222021021111} is an apocalyptic number.

2222021021111 is a deficient number, since it is larger than the sum of its proper divisors (526674289).

2222021021111 is an equidigital number, since it uses as much as digits as its factorization.

2222021021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526674288.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2222021021111 its reverse (1111201202222), we get a palindrome (3333222223333).

The spelling of 2222021021111 in words is "two trillion, two hundred twenty-two billion, twenty-one million, twenty-one thousand, one hundred eleven".