1222631012 has 12 divisors (see below), whose sum is σ = 2160377856. Its totient is φ = 605380200.

The previous prime is 1222630999. The next prime is 1222631017. The reversal of 1222631012 is 2101362221.

It is not an unprimeable number, because it can be changed into a prime (1222631017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483364 + ... + 1484187.

It is an arithmetic number, because the mean of its divisors is an integer number (180031488).

Almost surely, 2^1222631012 is an apocalyptic number.

It is an amenable number.

1222631012 is a deficient number, since it is larger than the sum of its proper divisors (937746844).

1222631012 is a wasteful number, since it uses less digits than its factorization.

1222631012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967658 (or 2967656 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1222631012 is about 34966.1409366261. The cubic root of 1222631012 is about 1069.2972973703.

Adding to 1222631012 its reverse (2101362221), we get a palindrome (3323993233).

The spelling of 1222631012 in words is "one billion, two hundred twenty-two million, six hundred thirty-one thousand, twelve".