2272222620 has 36 divisors (see below), whose sum is σ = 6892409160. Its totient is φ = 605925984.

The previous prime is 2272222619. The next prime is 2272222627. The reversal of 2272222620 is 262222722.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272222627) 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 11 ways as a sum of consecutive naturals, for example, 6311550 + ... + 6311909.

It is an arithmetic number, because the mean of its divisors is an integer number (191455810).

Almost surely, 2^2272222620 is an apocalyptic number.

2272222620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2272222620 is an abundant number, since it is smaller than the sum of its proper divisors (4620186540).

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

2272222620 is a wasteful number, since it uses less digits than its factorization.

2272222620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12623474 (or 12623469 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 2272222620 is about 47667.8363259756. The cubic root of 2272222620 is about 1314.6706264473.

The spelling of 2272222620 in words is "two billion, two hundred seventy-two million, two hundred twenty-two thousand, six hundred twenty".