2197227988 has 12 divisors (see below), whose sum is σ = 3848463360. Its totient is φ = 1097667032.

The previous prime is 2197227971. The next prime is 2197228003. The reversal of 2197227988 is 8897227912.

It is a super-3 number, since 3×2197227988³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231508 + ... + 240811.

It is an arithmetic number, because the mean of its divisors is an integer number (320705280).

Almost surely, 2^2197227988 is an apocalyptic number.

It is an amenable number.

2197227988 is a deficient number, since it is larger than the sum of its proper divisors (1651235372).

2197227988 is a wasteful number, since it uses less digits than its factorization.

2197227988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473486 (or 473484 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The square root of 2197227988 is about 46874.5985369475. The cubic root of 2197227988 is about 1300.0449664919.

The spelling of 2197227988 in words is "two billion, one hundred ninety-seven million, two hundred twenty-seven thousand, nine hundred eighty-eight".