2101002 has 16 divisors (see below), whose sum is σ = 4244832. Its totient is φ = 693200.

The previous prime is 2100997. The next prime is 2101003. The reversal of 2101002 is 2001012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (2101003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128 + ... + 2339.

It is an arithmetic number, because the mean of its divisors is an integer number (265302).

2^2101002 is an apocalyptic number.

2101002 is an abundant number, since it is smaller than the sum of its proper divisors (2143830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101002 is a wasteful number, since it uses less digits than its factorization.

2101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 2101002 is about 1449.4833562342. The cubic root of 2101002 is about 128.0782805670.

Adding to 2101002 its reverse (2001012), we get a palindrome (4102014).

The spelling of 2101002 in words is "two million, one hundred one thousand, two".