1222211012 has 24 divisors (see below), whose sum is σ = 2359536480. Its totient is φ = 549306560.

The previous prime is 1222210993. The next prime is 1222211017. The reversal of 1222211012 is 2101122221.

It is not an unprimeable number, because it can be changed into a prime (1222211017) 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, 152138 + ... + 159969.

It is an arithmetic number, because the mean of its divisors is an integer number (98314020).

Almost surely, 2^1222211012 is an apocalyptic number.

It is an amenable number.

1222211012 is a deficient number, since it is larger than the sum of its proper divisors (1137325468).

1222211012 is a wasteful number, since it uses less digits than its factorization.

1222211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312211 (or 312209 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1222211012 is about 34960.1346107248. The cubic root of 1222211012 is about 1069.1748411547.

Adding to 1222211012 its reverse (2101122221), we get a palindrome (3323333233).

The spelling of 1222211012 in words is "one billion, two hundred twenty-two million, two hundred eleven thousand, twelve".