11010021211111 has 8 divisors (see below), whose sum is σ = 11867141074320. Its totient is φ = 10154357798592.

The previous prime is 11010021211097. The next prime is 11010021211139. The reversal of 11010021211111 is 11111212001011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11010021211111 - 2²¹ = 11010019113959 is a prime.

It is a super-2 number, since 2×11010021211111² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010021211091 and 11010021211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010021211141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364096966 + ... + 364127203.

It is an arithmetic number, because the mean of its divisors is an integer number (1483392634290).

Almost surely, 2^{11010021211111} is an apocalyptic number.

11010021211111 is a deficient number, since it is larger than the sum of its proper divisors (857119863209).

11010021211111 is a wasteful number, since it uses less digits than its factorization.

11010021211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728225345.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11010021211111 its reverse (11111212001011), we get a palindrome (22121233212122).

The spelling of 11010021211111 in words is "eleven trillion, ten billion, twenty-one million, two hundred eleven thousand, one hundred eleven".