1222101012 has 24 divisors (see below), whose sum is σ = 3110802912. Its totient is φ = 370333600.

The previous prime is 1222100993. The next prime is 1222101017. The reversal of 1222101012 is 2101012221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4629039 + ... + 4629302.

It is an arithmetic number, because the mean of its divisors is an integer number (129616788).

Almost surely, 2^1222101012 is an apocalyptic number.

1222101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222101012 is an abundant number, since it is smaller than the sum of its proper divisors (1888701900).

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

1222101012 is a wasteful number, since it uses less digits than its factorization.

1222101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258359 (or 9258357 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1222101012 is about 34958.5613548384. The cubic root of 1222101012 is about 1069.1427646530.

Adding to 1222101012 its reverse (2101012221), we get a palindrome (3323113233).

The spelling of 1222101012 in words is "one billion, two hundred twenty-two million, one hundred one thousand, twelve".