2221122111022 has 16 divisors (see below), whose sum is σ = 3508715456640. Its totient is φ = 1051606310328.

The previous prime is 2221122111017. The next prime is 2221122111029. The reversal of 2221122111022 is 2201112211222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221122111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13924188 + ... + 14082799.

It is an arithmetic number, because the mean of its divisors is an integer number (219294716040).

Almost surely, 2^{2221122111022} is an apocalyptic number.

2221122111022 is a deficient number, since it is larger than the sum of its proper divisors (1287593345618).

2221122111022 is a wasteful number, since it uses less digits than its factorization.

2221122111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28009095.

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

Adding to 2221122111022 its reverse (2201112211222), we get a palindrome (4422234322244).

The spelling of 2221122111022 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred eleven thousand, twenty-two".