20111223303330 has 96 divisors (see below), whose sum is σ = 52038453934656. Its totient is φ = 4972186407936.

The previous prime is 20111223303299. The next prime is 20111223303331. The reversal of 20111223303330 is 3330332211102.

It is a super-2 number, since 2×20111223303330² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20111223303330.

It is not an unprimeable number, because it can be changed into a prime (20111223303331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16729809 + ... + 17891588.

It is an arithmetic number, because the mean of its divisors is an integer number (542067228486).

Almost surely, 2^{20111223303330} is an apocalyptic number.

20111223303330 is an abundant number, since it is smaller than the sum of its proper divisors (31927230631326).

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

20111223303330 is a wasteful number, since it uses less digits than its factorization.

20111223303330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34621508 (or 34621491 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20111223303330 its reverse (3330332211102), we get a palindrome (23441555514432).

The spelling of 20111223303330 in words is "twenty trillion, one hundred eleven billion, two hundred twenty-three million, three hundred three thousand, three hundred thirty".