1012121002222 has 72 divisors (see below), whose sum is σ = 1714244049000. Its totient is φ = 447715224000.

The previous prime is 1012121002133. The next prime is 1012121002237. The reversal of 1012121002222 is 2222001212101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1012121002196 and 1012121002205.

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 35 ways as a sum of consecutive naturals, for example, 145646404 + ... + 145653352.

It is an arithmetic number, because the mean of its divisors is an integer number (23808945125).

Almost surely, 2^{1012121002222} is an apocalyptic number.

1012121002222 is a deficient number, since it is larger than the sum of its proper divisors (702123046778).

1012121002222 is a wasteful number, since it uses less digits than its factorization.

1012121002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234 (or 7122 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1012121002222 its reverse (2222001212101), we get a palindrome (3234122214323).

The spelling of 1012121002222 in words is "one trillion, twelve billion, one hundred twenty-one million, two thousand, two hundred twenty-two".