1522221052222 has 32 divisors (see below), whose sum is σ = 2474896473504. Its totient is φ = 698021193600.

The previous prime is 1522221052189. The next prime is 1522221052243. The reversal of 1522221052222 is 2222501222251.

It is a super-2 number, since 2×1522221052222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4840633 + ... + 5145499.

It is an arithmetic number, because the mean of its divisors is an integer number (77340514797).

Almost surely, 2^{1522221052222} is an apocalyptic number.

1522221052222 is a deficient number, since it is larger than the sum of its proper divisors (952675421282).

1522221052222 is a wasteful number, since it uses less digits than its factorization.

1522221052222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306124.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 1522221052222 its reverse (2222501222251), we get a palindrome (3744722274473).

The spelling of 1522221052222 in words is "one trillion, five hundred twenty-two billion, two hundred twenty-one million, fifty-two thousand, two hundred twenty-two".