2221122211222 has 64 divisors (see below), whose sum is σ = 3431946672000. Its totient is φ = 1077841612800.

The previous prime is 2221122211213. The next prime is 2221122211271.

2221122211222 is nontrivially palindromic in base 10.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2221122211193 and 2221122211202.

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, 1281662268 + ... + 1281664000.

It is an arithmetic number, because the mean of its divisors is an integer number (53624166750).

Almost surely, 2^{2221122211222} is an apocalyptic number.

2221122211222 is a deficient number, since it is larger than the sum of its proper divisors (1210824460778).

2221122211222 is a wasteful number, since it uses less digits than its factorization.

2221122211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521.

The product of its digits is 512, while the sum is 22.

Multiplying 2221122211222 by its sum of digits (22), we get a palindrome (48864688646884).

The spelling of 2221122211222 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twenty-two".