21110200202 has 32 divisors (see below), whose sum is σ = 40316572800. Its totient is φ = 8063310528.

The previous prime is 21110200159. The next prime is 21110200217. The reversal of 21110200202 is 20200201112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1994552 + ... + 2005107.

It is an arithmetic number, because the mean of its divisors is an integer number (1259892900).

Almost surely, 2^21110200202 is an apocalyptic number.

21110200202 is a deficient number, since it is larger than the sum of its proper divisors (19206372598).

21110200202 is a wasteful number, since it uses less digits than its factorization.

21110200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999710.

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

Adding to 21110200202 its reverse (20200201112), we get a palindrome (41310401314).

The spelling of 21110200202 in words is "twenty-one billion, one hundred ten million, two hundred thousand, two hundred two".