1210222101211 has 4 divisors (see below), whose sum is σ = 1214721068400. Its totient is φ = 1205723134024.

The previous prime is 1210222101173. The next prime is 1210222101229. The reversal of 1210222101211 is 1121012220121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210222101211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210222101241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2249483191 + ... + 2249483728.

It is an arithmetic number, because the mean of its divisors is an integer number (303680267100).

Almost surely, 2^{1210222101211} is an apocalyptic number.

1210222101211 is a deficient number, since it is larger than the sum of its proper divisors (4498967189).

1210222101211 is an equidigital number, since it uses as much as digits as its factorization.

1210222101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498967188.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1210222101211 its reverse (1121012220121), we get a palindrome (2331234321332).

The spelling of 1210222101211 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, one hundred one thousand, two hundred eleven".