1022120222212 has 6 divisors (see below), whose sum is σ = 1788710388878. Its totient is φ = 511060111104.

The previous prime is 1022120222171. The next prime is 1022120222239. The reversal of 1022120222212 is 2122220212201.

It can be written as a sum of positive squares in only one way, i.e., 634023617536 + 388096604676 = 796256^2 + 622974^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1022120222212.

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 as a sum of consecutive naturals, namely, 127765027773 + ... + 127765027780.

Almost surely, 2^{1022120222212} is an apocalyptic number.

It is an amenable number.

1022120222212 is a deficient number, since it is larger than the sum of its proper divisors (766590166666).

1022120222212 is a wasteful number, since it uses less digits than its factorization.

1022120222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255530055557 (or 255530055555 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1022120222212 its reverse (2122220212201), we get a palindrome (3144340434413).

The spelling of 1022120222212 in words is "one trillion, twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twelve".