1210022222011 has 4 divisors (see below), whose sum is σ = 1210049164152. Its totient is φ = 1209995279872.

The previous prime is 1210022221981. The next prime is 1210022222023. The reversal of 1210022222011 is 1102222200121.

It is a happy number.

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-1210022222011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210022222051) 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, 13403590 + ... + 13493563.

It is an arithmetic number, because the mean of its divisors is an integer number (302512291038).

Almost surely, 2^{1210022222011} is an apocalyptic number.

1210022222011 is a deficient number, since it is larger than the sum of its proper divisors (26942141).

1210022222011 is an equidigital number, since it uses as much as digits as its factorization.

1210022222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26942140.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210022222011 its reverse (1102222200121), we get a palindrome (2312244422132).

The spelling of 1210022222011 in words is "one trillion, two hundred ten billion, twenty-two million, two hundred twenty-two thousand, eleven".