1222220995 has 8 divisors (see below), whose sum is σ = 1479645216. Its totient is φ = 969123456.

The previous prime is 1222220971. The next prime is 1222221031. The reversal of 1222220995 is 5990222221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222220995 - 2¹⁷ = 1222089923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222220995.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081047 + ... + 1082176.

It is an arithmetic number, because the mean of its divisors is an integer number (184955652).

Almost surely, 2^1222220995 is an apocalyptic number.

1222220995 is a deficient number, since it is larger than the sum of its proper divisors (257424221).

1222220995 is a wasteful number, since it uses less digits than its factorization.

1222220995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163341.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1222220995 is about 34960.2773873435. The cubic root of 1222220995 is about 1069.1777521478.

The spelling of 1222220995 in words is "one billion, two hundred twenty-two million, two hundred twenty thousand, nine hundred ninety-five".