20022002 has 64 divisors (see below), whose sum is σ = 41174784. Its totient is φ = 7050240.

The previous prime is 20021999. The next prime is 20022011.

20022002 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146078 + ... + 146214.

It is an arithmetic number, because the mean of its divisors is an integer number (643356).

Almost surely, 2^20022002 is an apocalyptic number.

20022002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20022002 is an abundant number, since it is smaller than the sum of its proper divisors (21152782).

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

20022002 is a wasteful number, since it uses less digits than its factorization.

20022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 20022002 is about 4474.5951772199. The cubic root of 20022002 is about 271.5412628753.

It can be divided in two parts, 2002 and 2002, that added together give a palindrome (4004).

The spelling of 20022002 in words is "twenty million, twenty-two thousand, two".