22121310333220 has 48 divisors (see below), whose sum is σ = 53128194231168. Its totient is φ = 7579156481280.

The previous prime is 22121310333211. The next prime is 22121310333233. The reversal of 22121310333220 is 2233301312122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54931746 + ... + 55332985.

It is an arithmetic number, because the mean of its divisors is an integer number (1106837379816).

Almost surely, 2^{22121310333220} is an apocalyptic number.

22121310333220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121310333220 is an abundant number, since it is smaller than the sum of its proper divisors (31006883897948).

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

22121310333220 is a wasteful number, since it uses less digits than its factorization.

22121310333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110266180 (or 110266178 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 22121310333220 its reverse (2233301312122), we get a palindrome (24354611645342).

The spelling of 22121310333220 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred ten million, three hundred thirty-three thousand, two hundred twenty".