1122112121113 has 8 divisors (see below), whose sum is σ = 1128336415848. Its totient is φ = 1115892056064.

The previous prime is 1122112121077. The next prime is 1122112121131. The reversal of 1122112121113 is 3111212112211.

It can be written as a sum of positive squares in 4 ways, for example, as 155797562944 + 966314558169 = 394712^2 + 983013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122112121113 - 2⁹ = 1122112120601 is a prime.

It is a super-2 number, since 2×1122112121113² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122112121153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524620 + ... + 1587277.

It is an arithmetic number, because the mean of its divisors is an integer number (141042051981).

Almost surely, 2^{1122112121113} is an apocalyptic number.

It is an amenable number.

1122112121113 is a deficient number, since it is larger than the sum of its proper divisors (6224294735).

1122112121113 is a wasteful number, since it uses less digits than its factorization.

1122112121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114843.

The product of its digits is 48, while the sum is 19.

Adding to 1122112121113 its reverse (3111212112211), we get a palindrome (4233324233324).

It can be divided in two parts, 1122112 and 121113, that added together give a square (1243225 = 1115²).

The spelling of 1122112121113 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, one hundred thirteen".