1222981395 has 8 divisors (see below), whose sum is σ = 1956770256. Its totient is φ = 652256736.

The previous prime is 1222981393. The next prime is 1222981423. The reversal of 1222981395 is 5931892221.

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

It is not a de Polignac number, because 1222981395 - 2¹ = 1222981393 is a prime.

It is a super-2 number, since 2×1222981395² = 2991366985032292050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222981393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40766032 + ... + 40766061.

It is an arithmetic number, because the mean of its divisors is an integer number (244596282).

Almost surely, 2^1222981395 is an apocalyptic number.

1222981395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1222981395 is a deficient number, since it is larger than the sum of its proper divisors (733788861).

1222981395 is an equidigital number, since it uses as much as digits as its factorization.

1222981395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81532101.

The product of its digits is 77760, while the sum is 42.

The square root of 1222981395 is about 34971.1508961315. The cubic root of 1222981395 is about 1069.3994344301.

The spelling of 1222981395 in words is "one billion, two hundred twenty-two million, nine hundred eighty-one thousand, three hundred ninety-five".