1122222121012 has 12 divisors (see below), whose sum is σ = 1963921743616. Its totient is φ = 561101622840.

The previous prime is 1122222120979. The next prime is 1122222121037. The reversal of 1122222121012 is 2101212222211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088414 + ... + 2570197.

Almost surely, 2^{1122222121012} is an apocalyptic number.

It is an amenable number.

1122222121012 is a deficient number, since it is larger than the sum of its proper divisors (841699622604).

1122222121012 is a wasteful number, since it uses less digits than its factorization.

1122222121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718838 (or 4718836 counting only the distinct ones).

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

Adding to 1122222121012 its reverse (2101212222211), we get a palindrome (3223434343223).

The spelling of 1122222121012 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, twelve".