2221222221222 has 64 divisors (see below), whose sum is σ = 4709094416640. Its totient is φ = 697616067456.

The previous prime is 2221222221191. The next prime is 2221222221233.

2221222221222 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2221222221192 and 2221222221201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387993 + ... + 2143124.

It is an arithmetic number, because the mean of its divisors is an integer number (73579600260).

Almost surely, 2^{2221222221222} is an apocalyptic number.

2221222221222 is an abundant number, since it is smaller than the sum of its proper divisors (2487872195418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221222221222 is a wasteful number, since it uses less digits than its factorization.

2221222221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531285.

The product of its digits is 2048, while the sum is 24.

The spelling of 2221222221222 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-two".