1012211122222 has 8 divisors (see below), whose sum is σ = 1520903255256. Its totient is φ = 505243370472.

The previous prime is 1012211122211. The next prime is 1012211122271. The reversal of 1012211122222 is 2222211122101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1012211122222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431093853 + ... + 431096200.

It is an arithmetic number, because the mean of its divisors is an integer number (190112906907).

Almost surely, 2^{1012211122222} is an apocalyptic number.

1012211122222 is a deficient number, since it is larger than the sum of its proper divisors (508692133034).

1012211122222 is an equidigital number, since it uses as much as digits as its factorization.

1012211122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862190642.

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

Adding to 1012211122222 its reverse (2222211122101), we get a palindrome (3234422244323).

The spelling of 1012211122222 in words is "one trillion, twelve billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twenty-two".