21111033202 has 16 divisors (see below), whose sum is σ = 36334533312. Its totient is φ = 9011538000.

The previous prime is 21111033191. The next prime is 21111033233. The reversal of 21111033202 is 20233011112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000333 + ... + 3007360.

It is an arithmetic number, because the mean of its divisors is an integer number (2270908332).

Almost surely, 2^21111033202 is an apocalyptic number.

21111033202 is a deficient number, since it is larger than the sum of its proper divisors (15223500110).

21111033202 is a wasteful number, since it uses less digits than its factorization.

21111033202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007953.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21111033202 its reverse (20233011112), we get a palindrome (41344044314).

The spelling of 21111033202 in words is "twenty-one billion, one hundred eleven million, thirty-three thousand, two hundred two".