1021201112 has 16 divisors (see below), whose sum is σ = 1922767200. Its totient is φ = 508463200.

The previous prime is 1021201079. The next prime is 1021201117. The reversal of 1021201112 is 2111021201.

It is a super-2 number, since 2×1021201112² = 2085703422300073088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021201093 and 1021201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265139 + ... + 268962.

It is an arithmetic number, because the mean of its divisors is an integer number (120172950).

Almost surely, 2^1021201112 is an apocalyptic number.

It is an amenable number.

1021201112 is a deficient number, since it is larger than the sum of its proper divisors (901566088).

1021201112 is a wasteful number, since it uses less digits than its factorization.

1021201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534346 (or 534342 counting only the distinct ones).

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

The square root of 1021201112 is about 31956.2374506136. The cubic root of 1021201112 is about 1007.0176743781.

Adding to 1021201112 its reverse (2111021201), we get a palindrome (3132222313).

The spelling of 1021201112 in words is "one billion, twenty-one million, two hundred one thousand, one hundred twelve".