11012020210111 has 4 divisors (see below), whose sum is σ = 11079578616472. Its totient is φ = 10944461803752.

The previous prime is 11012020210063. The next prime is 11012020210181. The reversal of 11012020210111 is 11101202021011.

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 11012020210111 - 2³⁷ = 10874581256639 is a prime.

It is a super-2 number, since 2×11012020210111² (a number of 27 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 = 11012020210091 and 11012020210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012020210181) 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, 33779202936 + ... + 33779203261.

It is an arithmetic number, because the mean of its divisors is an integer number (2769894654118).

Almost surely, 2^{11012020210111} is an apocalyptic number.

11012020210111 is a deficient number, since it is larger than the sum of its proper divisors (67558406361).

11012020210111 is an equidigital number, since it uses as much as digits as its factorization.

11012020210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67558406360.

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

Adding to 11012020210111 its reverse (11101202021011), we get a palindrome (22113222231122).

The spelling of 11012020210111 in words is "eleven trillion, twelve billion, twenty million, two hundred ten thousand, one hundred eleven".