1210031222011 has 4 divisors (see below), whose sum is σ = 1238171483032. Its totient is φ = 1181890960992.

The previous prime is 1210031221981. The next prime is 1210031222041. The reversal of 1210031222011 is 1102221300121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1210031221981) and next prime (1210031222041).

It is a cyclic number.

It is not a de Polignac number, because 1210031222011 - 2¹³ = 1210031213819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210031222041) 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, 14070130446 + ... + 14070130531.

It is an arithmetic number, because the mean of its divisors is an integer number (309542870758).

Almost surely, 2^{1210031222011} is an apocalyptic number.

1210031222011 is a deficient number, since it is larger than the sum of its proper divisors (28140261021).

1210031222011 is an equidigital number, since it uses as much as digits as its factorization.

1210031222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28140261020.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1210031222011 its reverse (1102221300121), we get a palindrome (2312252522132).

The spelling of 1210031222011 in words is "one trillion, two hundred ten billion, thirty-one million, two hundred twenty-two thousand, eleven".