2221221111022 has 16 divisors (see below), whose sum is σ = 3476740944672. Its totient is φ = 1062308769280.

The previous prime is 2221221111017. The next prime is 2221221111059. The reversal of 2221221111022 is 2201111221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3624822 + ... + 4193062.

It is an arithmetic number, because the mean of its divisors is an integer number (217296309042).

Almost surely, 2^{2221221111022} is an apocalyptic number.

2221221111022 is a deficient number, since it is larger than the sum of its proper divisors (1255519833650).

2221221111022 is a wasteful number, since it uses less digits than its factorization.

2221221111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653243.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221221111022 its reverse (2201111221222), we get a palindrome (4422332332244).

The spelling of 2221221111022 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred eleven thousand, twenty-two".