21141502223 has 4 divisors (see below), whose sum is σ = 21241699128. Its totient is φ = 21041305320.

The previous prime is 21141502219. The next prime is 21141502237. The reversal of 21141502223 is 32220514112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21141502223 - 2² = 21141502219 is a prime.

It is a super-2 number, since 2×21141502223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21941502223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 50098136 + ... + 50098557.

It is an arithmetic number, because the mean of its divisors is an integer number (5310424782).

Almost surely, 2^21141502223 is an apocalyptic number.

21141502223 is a deficient number, since it is larger than the sum of its proper divisors (100196905).

21141502223 is a wasteful number, since it uses less digits than its factorization.

21141502223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100196904.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 21141502223 in words is "twenty-one billion, one hundred forty-one million, five hundred two thousand, two hundred twenty-three".