1122121012 has 24 divisors (see below), whose sum is σ = 2096962560. Its totient is φ = 524237280.

The previous prime is 1122120997. The next prime is 1122121031. The reversal of 1122121012 is 2101212211.

It is a junction number, because it is equal to n+sod(n) for n = 1122120983 and 1122121001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152428 + ... + 159619.

It is an arithmetic number, because the mean of its divisors is an integer number (87373440).

Almost surely, 2^1122121012 is an apocalyptic number.

It is an amenable number.

1122121012 is a deficient number, since it is larger than the sum of its proper divisors (974841548).

1122121012 is a wasteful number, since it uses less digits than its factorization.

1122121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312111 (or 312109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1122121012 is about 33498.0747506480. The cubic root of 1122121012 is about 1039.1539630722.

Adding to 1122121012 its reverse (2101212211), we get a palindrome (3223333223).

The spelling of 1122121012 in words is "one billion, one hundred twenty-two million, one hundred twenty-one thousand, twelve".