1002120111112 has 16 divisors (see below), whose sum is σ = 1879412548860. Its totient is φ = 500943431424.

The previous prime is 1002120111067. The next prime is 1002120111119. The reversal of 1002120111112 is 2111110212001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 950324723716 + 51795387396 = 974846^2 + 227586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1002120111092 and 1002120111101.

It is not an unprimeable number, because it can be changed into a prime (1002120111119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14541493 + ... + 14610244.

Almost surely, 2^{1002120111112} is an apocalyptic number.

It is an amenable number.

1002120111112 is a deficient number, since it is larger than the sum of its proper divisors (877292437748).

1002120111112 is a wasteful number, since it uses less digits than its factorization.

1002120111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29156040 (or 29156036 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1002120111112 its reverse (2111110212001), we get a palindrome (3113230323113).

The spelling of 1002120111112 in words is "one trillion, two billion, one hundred twenty million, one hundred eleven thousand, one hundred twelve".