21202119 has 12 divisors (see below), whose sum is σ = 32237400. Its totient is φ = 13390704.

The previous prime is 21202079. The next prime is 21202121. The reversal of 21202119 is 91120212.

It is not a de Polignac number, because 21202119 - 2⁷ = 21201991 is a prime.

It is a super-2 number, since 2×21202119² = 899059700180322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61824 + ... + 62165.

It is an arithmetic number, because the mean of its divisors is an integer number (2686450).

Almost surely, 2^21202119 is an apocalyptic number.

21202119 is a deficient number, since it is larger than the sum of its proper divisors (11035281).

21202119 is a wasteful number, since it uses less digits than its factorization.

21202119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124014 (or 124011 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 21202119 is about 4604.5758762344. The cubic root of 21202119 is about 276.7747215867.

It can be divided in two parts, 21202 and 119, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 21202119 in words is "twenty-one million, two hundred two thousand, one hundred nineteen".