11012020011211 has 4 divisors (see below), whose sum is σ = 11018813362624. Its totient is φ = 11005226659800.

The previous prime is 11012020011121. The next prime is 11012020011233. The reversal of 11012020011211 is 11211002021011.

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 11012020011211 - 2²¹ = 11012017914059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012020011191 and 11012020011200.

It is not an unprimeable number, because it can be changed into a prime (11012020011241) 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, 3396673275 + ... + 3396676516.

It is an arithmetic number, because the mean of its divisors is an integer number (2754703340656).

Almost surely, 2^{11012020011211} is an apocalyptic number.

11012020011211 is a deficient number, since it is larger than the sum of its proper divisors (6793351413).

11012020011211 is an equidigital number, since it uses as much as digits as its factorization.

11012020011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793351412.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11012020011211 its reverse (11211002021011), we get a palindrome (22223022032222).

The spelling of 11012020011211 in words is "eleven trillion, twelve billion, twenty million, eleven thousand, two hundred eleven".