1122112121012 has 48 divisors (see below), whose sum is σ = 1990496496912. Its totient is φ = 553439969280.

The previous prime is 1122112120981. The next prime is 1122112121033. The reversal of 1122112121012 is 2101212112211.

It can be written as a sum of positive squares in 8 ways, for example, as 186585985936 + 935526135076 = 431956^2 + 967226^2 .

It is a super-2 number, since 2×1122112121012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184767608 + ... + 184773680.

It is an arithmetic number, because the mean of its divisors is an integer number (41468677019).

Almost surely, 2^{1122112121012} is an apocalyptic number.

It is an amenable number.

1122112121012 is a deficient number, since it is larger than the sum of its proper divisors (868384375900).

1122112121012 is a wasteful number, since it uses less digits than its factorization.

1122112121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7668 (or 7666 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122112121012 its reverse (2101212112211), we get a palindrome (3223324233223).

The spelling of 1122112121012 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, twelve".