1210122011 has 16 divisors (see below), whose sum is σ = 1419622848. Its totient is φ = 1009881600.

The previous prime is 1210122007. The next prime is 1210122029. The reversal of 1210122011 is 1102210121.

It is not a de Polignac number, because 1210122011 - 2² = 1210122007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210121983 and 1210122001.

It is not an unprimeable number, because it can be changed into a prime (1210122031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145481 + ... + 153573.

It is an arithmetic number, because the mean of its divisors is an integer number (88726428).

Almost surely, 2^1210122011 is an apocalyptic number.

1210122011 is a deficient number, since it is larger than the sum of its proper divisors (209500837).

1210122011 is an equidigital number, since it uses as much as digits as its factorization.

1210122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8662.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1210122011 is about 34786.8080024598. The cubic root of 1210122011 is about 1065.6380524208.

Adding to 1210122011 its reverse (1102210121), we get a palindrome (2312332132).

The spelling of 1210122011 in words is "one billion, two hundred ten million, one hundred twenty-two thousand, eleven".