21003111222330 has 64 divisors (see below), whose sum is σ = 50499356221440. Its totient is φ = 5590622981184.

The previous prime is 21003111222293. The next prime is 21003111222371. The reversal of 21003111222330 is 3322211130012.

It is a super-2 number, since 2×21003111222330² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003111222297 and 21003111222306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106958497 + ... + 107154683.

It is an arithmetic number, because the mean of its divisors is an integer number (789052440960).

Almost surely, 2^{21003111222330} is an apocalyptic number.

21003111222330 is an abundant number, since it is smaller than the sum of its proper divisors (29496244999110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21003111222330 is a wasteful number, since it uses less digits than its factorization.

21003111222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202683.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21003111222330 its reverse (3322211130012), we get a palindrome (24325322352342).

The spelling of 21003111222330 in words is "twenty-one trillion, three billion, one hundred eleven million, two hundred twenty-two thousand, three hundred thirty".