21111213022330 has 32 divisors (see below), whose sum is σ = 38644708608000. Its totient is φ = 8301260759232.

The previous prime is 21111213022309. The next prime is 21111213022337. The reversal of 21111213022330 is 3322031211112.

It is not an unprimeable number, because it can be changed into a prime (21111213022337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69704304 + ... + 70006516.

It is an arithmetic number, because the mean of its divisors is an integer number (1207647144000).

Almost surely, 2^{21111213022330} is an apocalyptic number.

21111213022330 is a deficient number, since it is larger than the sum of its proper divisors (17533495585670).

21111213022330 is a wasteful number, since it uses less digits than its factorization.

21111213022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420678.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21111213022330 its reverse (3322031211112), we get a palindrome (24433244233442).

The spelling of 21111213022330 in words is "twenty-one trillion, one hundred eleven billion, two hundred thirteen million, twenty-two thousand, three hundred thirty".