1222212270 has 32 divisors (see below), whose sum is σ = 2934613152. Its totient is φ = 325778432.

The previous prime is 1222212241. The next prime is 1222212281. The reversal of 1222212270 is 722122221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71254 + ... + 86726.

It is an arithmetic number, because the mean of its divisors is an integer number (91706661).

Almost surely, 2^1222212270 is an apocalyptic number.

1222212270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222212270 is an abundant number, since it is smaller than the sum of its proper divisors (1712400882).

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

1222212270 is a wasteful number, since it uses less digits than its factorization.

1222212270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18116.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1222212270 is about 34960.1526026418. The cubic root of 1222212270 is about 1069.1752079821.

Adding to 1222212270 its reverse (722122221), we get a palindrome (1944334491).

The spelling of 1222212270 in words is "one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred seventy".