1121220022012 has 12 divisors (see below), whose sum is σ = 1985775220296. Its totient is φ = 553855673360.

The previous prime is 1121220022001. The next prime is 1121220022057. The reversal of 1121220022012 is 2102200221211.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 1688584039 + ... + 1688584702.

It is an arithmetic number, because the mean of its divisors is an integer number (165481268358).

Almost surely, 2^{1121220022012} is an apocalyptic number.

It is an amenable number.

1121220022012 is a deficient number, since it is larger than the sum of its proper divisors (864555198284).

1121220022012 is a wasteful number, since it uses less digits than its factorization.

1121220022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377168828 (or 3377168826 counting only the distinct ones).

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

Adding to 1121220022012 its reverse (2102200221211), we get a palindrome (3223420243223).

The spelling of 1121220022012 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, twenty-two thousand, twelve".