22121200000220 has 48 divisors (see below), whose sum is σ = 47600852294016. Its totient is φ = 8630251584000.

The previous prime is 22121200000213. The next prime is 22121200000267. The reversal of 22121200000220 is 2200000212122.

It is a junction number, because it is equal to n+sod(n) for n = 22121200000195 and 22121200000204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830276 + ... + 6703115.

It is an arithmetic number, because the mean of its divisors is an integer number (991684422792).

Almost surely, 2^{22121200000220} is an apocalyptic number.

22121200000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121200000220 is an abundant number, since it is smaller than the sum of its proper divisors (25479652293796).

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

22121200000220 is a wasteful number, since it uses less digits than its factorization.

22121200000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537022 (or 7537020 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22121200000220 its reverse (2200000212122), we get a palindrome (24321200212342).

The spelling of 22121200000220 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred million, two hundred twenty", and thus it is an aban number.