2120002 has 16 divisors (see below), whose sum is σ = 3514752.
Its totient is φ = 953920.
The previous prime is 2119969. The next prime is 2120009. The reversal of 2120002 is 2000212.
Adding to 2120002 its reverse (2000212), we get a palindrome (4120214).
It is a happy number.
2120002 is nontrivially palindromic in base 4.
It is not an unprimeable number, because it can be changed into a prime (2120009) 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, 574 + ... + 2137.
It is an arithmetic number, because the mean of its divisors is an integer number (219672).
22120002 is an apocalyptic number.
2120002 is a deficient number, since it is larger than the sum of its proper divisors (1394750).
2120002 is a wasteful number, since it uses less digits than its factorization.
2120002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2753.
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 2120002 is about 1456.0226646588.
The cubic root of 2120002 is about 128.4632061685.
The spelling of 2120002 in words is "two million, one hundred twenty thousand, two".