1302121112 has 16 divisors (see below), whose sum is σ = 2525666400. Its totient is φ = 628610080.

The previous prime is 1302121111. The next prime is 1302121127. The reversal of 1302121112 is 2111212031.

It is a super-2 number, since 2×1302121112² = 3391038780632233088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302121111) 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, 2806064 + ... + 2806527.

It is an arithmetic number, because the mean of its divisors is an integer number (157854150).

Almost surely, 2^1302121112 is an apocalyptic number.

It is an amenable number.

1302121112 is a deficient number, since it is larger than the sum of its proper divisors (1223545288).

1302121112 is a wasteful number, since it uses less digits than its factorization.

1302121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612626 (or 5612622 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1302121112 is about 36084.9152971155. The cubic root of 1302121112 is about 1091.9861416839.

Adding to 1302121112 its reverse (2111212031), we get a palindrome (3413333143).

The spelling of 1302121112 in words is "one billion, three hundred two million, one hundred twenty-one thousand, one hundred twelve".