21003212211130 has 16 divisors (see below), whose sum is σ = 37807243990560. Its totient is φ = 8400959993232.

The previous prime is 21003212211119. The next prime is 21003212211161. The reversal of 21003212211130 is 3111221230012.

It is a super-3 number, since 3×21003212211130³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 21003212211098 and 21003212211107.

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, 40339800 + ... + 40857139.

It is an arithmetic number, because the mean of its divisors is an integer number (2362952749410).

Almost surely, 2^{21003212211130} is an apocalyptic number.

21003212211130 is a deficient number, since it is larger than the sum of its proper divisors (16804031779430).

21003212211130 is a wasteful number, since it uses less digits than its factorization.

21003212211130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81222813.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21003212211130 its reverse (3111221230012), we get a palindrome (24114433441142).

The spelling of 21003212211130 in words is "twenty-one trillion, three billion, two hundred twelve million, two hundred eleven thousand, one hundred thirty".