21214411203153 has 32 divisors (see below), whose sum is σ = 33675661803520. Its totient is φ = 11623843414080.

The previous prime is 21214411203101. The next prime is 21214411203169. The reversal of 21214411203153 is 35130211441212.

It is not a de Polignac number, because 21214411203153 - 2⁹ = 21214411202641 is a prime.

It is a super-3 number, since 3×21214411203153³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21214411203153.

It is not an unprimeable number, because it can be changed into a prime (21214411201153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149412625 + ... + 149554542.

It is an arithmetic number, because the mean of its divisors is an integer number (1052364431360).

Almost surely, 2^{21214411203153} is an apocalyptic number.

It is an amenable number.

21214411203153 is a deficient number, since it is larger than the sum of its proper divisors (12461250600367).

21214411203153 is a wasteful number, since it uses less digits than its factorization.

21214411203153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298967317.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 21214411203153 its reverse (35130211441212), we get a palindrome (56344622644365).

The spelling of 21214411203153 in words is "twenty-one trillion, two hundred fourteen billion, four hundred eleven million, two hundred three thousand, one hundred fifty-three".