1122111021012 has 24 divisors (see below), whose sum is σ = 2622502598016. Its totient is φ = 373430785728.

The previous prime is 1122111021001. The next prime is 1122111021023. The reversal of 1122111021012 is 2101201112211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1122111021001) and next prime (1122111021023).

It is a junction number, because it is equal to n+sod(n) for n = 1122111020982 and 1122111021000.

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 7 ways as a sum of consecutive naturals, for example, 75769948 + ... + 75784755.

It is an arithmetic number, because the mean of its divisors is an integer number (109270941584).

Almost surely, 2^{1122111021012} is an apocalyptic number.

1122111021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122111021012 is an abundant number, since it is smaller than the sum of its proper divisors (1500391577004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122111021012 is a wasteful number, since it uses less digits than its factorization.

1122111021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151555327 (or 151555325 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1122111021012 its reverse (2101201112211), we get a palindrome (3223312133223).

The spelling of 1122111021012 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, twenty-one thousand, twelve".