21114002 has 24 divisors (see below), whose sum is σ = 39678156. Its totient is φ = 8352288.

The previous prime is 21113999. The next prime is 21114011. The reversal of 21114002 is 20041112.

It can be written as a sum of positive squares in 2 ways, for example, as 20894041 + 219961 = 4571^2 + 469^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7013 + ... + 9560.

Almost surely, 2^21114002 is an apocalyptic number.

21114002 is a deficient number, since it is larger than the sum of its proper divisors (18564154).

21114002 is a wasteful number, since it uses less digits than its factorization.

21114002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16602 (or 16595 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 21114002 is about 4594.9974972790. The cubic root of 21114002 is about 276.3907596026.

Adding to 21114002 its reverse (20041112), we get a palindrome (41155114).

The spelling of 21114002 in words is "twenty-one million, one hundred fourteen thousand, two".