1112121002 has 4 divisors (see below), whose sum is σ = 1668181506. Its totient is φ = 556060500.

The previous prime is 1112120987. The next prime is 1112121071. The reversal of 1112121002 is 2001212111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2001212111 = 11887 ⋅168353.

It can be written as a sum of positive squares in only one way, i.e., 1049695201 + 62425801 = 32399^2 + 7901^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278030249 + ... + 278030252.

Almost surely, 2^1112121002 is an apocalyptic number.

1112121002 is a deficient number, since it is larger than the sum of its proper divisors (556060504).

1112121002 is an equidigital number, since it uses as much as digits as its factorization.

1112121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556060503.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1112121002 is about 33348.4782561364. The cubic root of 1112121002 is about 1036.0578702089.

Adding to 1112121002 its reverse (2001212111), we get a palindrome (3113333113).

It can be divided in two parts, 11121 and 21002, that added together give a palindrome (32123).

The spelling of 1112121002 in words is "one billion, one hundred twelve million, one hundred twenty-one thousand, two".