11020021111001 has 16 divisors (see below), whose sum is σ = 12599937131520. Its totient is φ = 9441512649360.

The previous prime is 11020021110991. The next prime is 11020021111037. The reversal of 11020021111001 is 10011112002011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11020021111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020021111051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233713910 + ... + 233761056.

It is an arithmetic number, because the mean of its divisors is an integer number (787496070720).

Almost surely, 2^{11020021111001} is an apocalyptic number.

It is an amenable number.

11020021111001 is a deficient number, since it is larger than the sum of its proper divisors (1579916020519).

11020021111001 is a wasteful number, since it uses less digits than its factorization.

11020021111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61364.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11020021111001 its reverse (10011112002011), we get a palindrome (21031133113012).

The spelling of 11020021111001 in words is "eleven trillion, twenty billion, twenty-one million, one hundred eleven thousand, one".