21214025211530 has 32 divisors (see below), whose sum is σ = 38265624849600. Its totient is φ = 8467758904320.

The previous prime is 21214025211503. The next prime is 21214025211553. The reversal of 21214025211530 is 3511252041212.

It is a super-2 number, since 2×21214025211530² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21214025211493 and 21214025211502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14892125 + ... + 16254335.

It is an arithmetic number, because the mean of its divisors is an integer number (1195800776550).

Almost surely, 2^{21214025211530} is an apocalyptic number.

21214025211530 is a deficient number, since it is larger than the sum of its proper divisors (17051599638070).

21214025211530 is a wasteful number, since it uses less digits than its factorization.

21214025211530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365494.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 21214025211530 its reverse (3511252041212), we get a palindrome (24725277252742).

The spelling of 21214025211530 in words is "twenty-one trillion, two hundred fourteen billion, twenty-five million, two hundred eleven thousand, five hundred thirty".