21230034602215 has 8 divisors (see below), whose sum is σ = 26583695502048. Its totient is φ = 16245591695520.

The previous prime is 21230034602197. The next prime is 21230034602243. The reversal of 21230034602215 is 51220643003212.

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

It is not a de Polignac number, because 21230034602215 - 2⁷ = 21230034602087 is a prime.

It is a super-2 number, since 2×21230034602215² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92304498156 + ... + 92304498385.

It is an arithmetic number, because the mean of its divisors is an integer number (3322961937756).

Almost surely, 2^{21230034602215} is an apocalyptic number.

21230034602215 is a deficient number, since it is larger than the sum of its proper divisors (5353660899833).

21230034602215 is a wasteful number, since it uses less digits than its factorization.

21230034602215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184608996569.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 21230034602215 its reverse (51220643003212), we get a palindrome (72450677605427).

The spelling of 21230034602215 in words is "twenty-one trillion, two hundred thirty billion, thirty-four million, six hundred two thousand, two hundred fifteen".