2221220221222 has 8 divisors (see below), whose sum is σ = 3349274470272. Its totient is φ = 1104795397800.

The previous prime is 2221220221217. The next prime is 2221220221249.

2221220221222 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2221220221193 and 2221220221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2907355929 + ... + 2907356692.

It is an arithmetic number, because the mean of its divisors is an integer number (418659308784).

Almost surely, 2^{2221220221222} is an apocalyptic number.

2221220221222 is a deficient number, since it is larger than the sum of its proper divisors (1128054249050).

2221220221222 is a wasteful number, since it uses less digits than its factorization.

2221220221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5814712814.

The product of its (nonzero) digits is 1024, while the sum is 22.

Multiplying 2221220221222 by its sum of digits (22), we get a palindrome (48866844866884).

It can be divided in two parts, 2221220 and 221222, that added together give a palindrome (2442442).

The spelling of 2221220221222 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".