1210222011 has 12 divisors (see below), whose sum is σ = 1658425272. Its totient is φ = 785006208.

The previous prime is 1210222007. The next prime is 1210222037. The reversal of 1210222011 is 1102220121.

It is not a de Polignac number, because 1210222011 - 2² = 1210222007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210223011) 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 11 ways as a sum of consecutive naturals, for example, 143230 + ... + 151443.

It is an arithmetic number, because the mean of its divisors is an integer number (138202106).

Almost surely, 2^1210222011 is an apocalyptic number.

1210222011 is a deficient number, since it is larger than the sum of its proper divisors (448203261).

1210222011 is an equidigital number, since it uses as much as digits as its factorization.

1210222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294750 (or 294713 counting only the distinct ones).

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

The square root of 1210222011 is about 34788.2452992386. The cubic root of 1210222011 is about 1065.6674050726.

Adding to 1210222011 its reverse (1102220121), we get a palindrome (2312442132).

It can be divided in two parts, 1 and 210222011, that added together give a palindrome (210222012).

The spelling of 1210222011 in words is "one billion, two hundred ten million, two hundred twenty-two thousand, eleven".