1021202105 has 16 divisors (see below), whose sum is σ = 1527825024. Its totient is φ = 636593280.

The previous prime is 1021202081. The next prime is 1021202113. The reversal of 1021202105 is 5012021201.

It is not a de Polignac number, because 1021202105 - 2¹⁴ = 1021185721 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021202105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1325852 + ... + 1326621.

It is an arithmetic number, because the mean of its divisors is an integer number (95489064).

Almost surely, 2^1021202105 is an apocalyptic number.

It is an amenable number.

1021202105 is a deficient number, since it is larger than the sum of its proper divisors (506622919).

1021202105 is a wasteful number, since it uses less digits than its factorization.

1021202105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652496.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1021202105 is about 31956.2529874827. The cubic root of 1021202105 is about 1007.0180007807.

Adding to 1021202105 its reverse (5012021201), we get a palindrome (6033223306).

The spelling of 1021202105 in words is "one billion, twenty-one million, two hundred two thousand, one hundred five".