1222000020011 has 4 divisors (see below), whose sum is σ = 1222452783000. Its totient is φ = 1221547257024.

The previous prime is 1222000019983. The next prime is 1222000020029. The reversal of 1222000020011 is 1100200002221.

It is a happy number.

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 1222000020011 - 2³⁴ = 1204820150827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222000019974 and 1222000020001.

It is not an unprimeable number, because it can be changed into a prime (1222000020061) 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, 226377446 + ... + 226382843.

It is an arithmetic number, because the mean of its divisors is an integer number (305613195750).

Almost surely, 2^{1222000020011} is an apocalyptic number.

1222000020011 is a deficient number, since it is larger than the sum of its proper divisors (452762989).

1222000020011 is an equidigital number, since it uses as much as digits as its factorization.

1222000020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452762988.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1222000020011 its reverse (1100200002221), we get a palindrome (2322200022232).

The spelling of 1222000020011 in words is "one trillion, two hundred twenty-two billion, twenty thousand, eleven".