11020020002001 has 16 divisors (see below), whose sum is σ = 16326009587520. Its totient is φ = 7346655688320.

The previous prime is 11020020001999. The next prime is 11020020002011. The reversal of 11020020002001 is 10020002002011.

It is not a de Polignac number, because 11020020002001 - 2¹ = 11020020001999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11020020002011) 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, 11874346 + ... + 12768716.

It is an arithmetic number, because the mean of its divisors is an integer number (1020375599220).

Almost surely, 2^{11020020002001} is an apocalyptic number.

It is an amenable number.

11020020002001 is a deficient number, since it is larger than the sum of its proper divisors (5305989585519).

11020020002001 is an equidigital number, since it uses as much as digits as its factorization.

11020020002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350733 (or 1350727 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11020020002001 its reverse (10020002002011), we get a palindrome (21040022004012).

The spelling of 11020020002001 in words is "eleven trillion, twenty billion, twenty million, two thousand, one".