21199065035 has 16 divisors (see below), whose sum is σ = 26912352000. Its totient is φ = 15985908576.

The previous prime is 21199065007. The next prime is 21199065053. The reversal of 21199065035 is 53056099112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21199065035 - 2²⁰ = 21198016459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21199064983 and 21199065001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541769 + ... + 579578.

It is an arithmetic number, because the mean of its divisors is an integer number (1682022000).

Almost surely, 2^21199065035 is an apocalyptic number.

21199065035 is a deficient number, since it is larger than the sum of its proper divisors (5713286965).

21199065035 is a wasteful number, since it uses less digits than its factorization.

21199065035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121570.

The product of its (nonzero) digits is 72900, while the sum is 41.

The spelling of 21199065035 in words is "twenty-one billion, one hundred ninety-nine million, sixty-five thousand, thirty-five".