2121003112 has 8 divisors (see below), whose sum is σ = 3976880850. Its totient is φ = 1060501552.

The previous prime is 2121003097. The next prime is 2121003149. The reversal of 2121003112 is 2113001212.

It can be written as a sum of positive squares in only one way, i.e., 1912662756 + 208340356 = 43734^2 + 14434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2121003112² = 8997308402227369088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121003092 and 2121003101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132562687 + ... + 132562702.

Almost surely, 2^2121003112 is an apocalyptic number.

It is an amenable number.

2121003112 is a deficient number, since it is larger than the sum of its proper divisors (1855877738).

2121003112 is a wasteful number, since it uses less digits than its factorization.

2121003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265125395 (or 265125391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2121003112 is about 46054.3495448584. The cubic root of 2121003112 is about 1284.8342404546.

Adding to 2121003112 its reverse (2113001212), we get a palindrome (4234004324).

The spelling of 2121003112 in words is "two billion, one hundred twenty-one million, three thousand, one hundred twelve".