12220425844890 has 16 divisors (see below), whose sum is σ = 29329022027808. Its totient is φ = 3258780225296.

The previous prime is 12220425844877. The next prime is 12220425844897. The reversal of 12220425844890 is 9844852402221.

It is a super-2 number, since 2×12220425844890² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12220425844897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203673764052 + ... + 203673764111.

It is an arithmetic number, because the mean of its divisors is an integer number (1833063876738).

Almost surely, 2^{12220425844890} is an apocalyptic number.

12220425844890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220425844890 is an abundant number, since it is smaller than the sum of its proper divisors (17108596182918).

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

12220425844890 is a wasteful number, since it uses less digits than its factorization.

12220425844890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407347528173.

The product of its (nonzero) digits is 2949120, while the sum is 51.

The spelling of 12220425844890 in words is "twelve trillion, two hundred twenty billion, four hundred twenty-five million, eight hundred forty-four thousand, eight hundred ninety".