1031221023222 has 16 divisors (see below), whose sum is σ = 2221091434800. Its totient is φ = 317298776352.

The previous prime is 1031221023197. The next prime is 1031221023233. The reversal of 1031221023222 is 2223201221301.

It is a super-2 number, since 2×1031221023222² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6610391097 + ... + 6610391252.

It is an arithmetic number, because the mean of its divisors is an integer number (138818214675).

Almost surely, 2^{1031221023222} is an apocalyptic number.

1031221023222 is an abundant number, since it is smaller than the sum of its proper divisors (1189870411578).

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

1031221023222 is a wasteful number, since it uses less digits than its factorization.

1031221023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13220782367.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1031221023222 its reverse (2223201221301), we get a palindrome (3254422244523).

The spelling of 1031221023222 in words is "one trillion, thirty-one billion, two hundred twenty-one million, twenty-three thousand, two hundred twenty-two".