1222110020011 has 4 divisors (see below), whose sum is σ = 1222174087624. Its totient is φ = 1222045952400.

The previous prime is 1222110020009. The next prime is 1222110020029. The reversal of 1222110020011 is 1100200112221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222110020011 - 2¹ = 1222110020009 is a prime.

It is a super-2 number, since 2×1222110020011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222110019973 and 1222110020000.

It is not an unprimeable number, because it can be changed into a prime (1222110020071) 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, 32005185 + ... + 32043346.

It is an arithmetic number, because the mean of its divisors is an integer number (305543521906).

Almost surely, 2^{1222110020011} is an apocalyptic number.

1222110020011 is a deficient number, since it is larger than the sum of its proper divisors (64067613).

1222110020011 is an equidigital number, since it uses as much as digits as its factorization.

1222110020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64067612.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1222110020011 its reverse (1100200112221), we get a palindrome (2322310132232).

The spelling of 1222110020011 in words is "one trillion, two hundred twenty-two billion, one hundred ten million, twenty thousand, eleven".