21033021119 has 8 divisors (see below), whose sum is σ = 23221562112. Its totient is φ = 18890554840.

The previous prime is 21033021091. The next prime is 21033021127. The reversal of 21033021119 is 91112033012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21033021119 is a prime.

It is a super-2 number, since 2×21033021119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21033021094 and 21033021103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033021619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11517719 + ... + 11519544.

It is an arithmetic number, because the mean of its divisors is an integer number (2902695264).

Almost surely, 2^21033021119 is an apocalyptic number.

21033021119 is a deficient number, since it is larger than the sum of its proper divisors (2188540993).

21033021119 is a wasteful number, since it uses less digits than its factorization.

21033021119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23037357.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 21033021119 in words is "twenty-one billion, thirty-three million, twenty-one thousand, one hundred nineteen".