1001021102 has 16 divisors (see below), whose sum is σ = 1527467712. Its totient is φ = 491879520.

The previous prime is 1001021069. The next prime is 1001021107. The reversal of 1001021102 is 2011201001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001021107) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 174443 + ... + 180089.

It is an arithmetic number, because the mean of its divisors is an integer number (95466732).

Almost surely, 2^1001021102 is an apocalyptic number.

1001021102 is a deficient number, since it is larger than the sum of its proper divisors (526446610).

1001021102 is a wasteful number, since it uses less digits than its factorization.

1001021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7163.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1001021102 is about 31638.9175225702. The cubic root of 1001021102 is about 1000.3402515491.

Adding to 1001021102 its reverse (2011201001), we get a palindrome (3012222103).

The spelling of 1001021102 in words is "one billion, one million, twenty-one thousand, one hundred two".