11211021020001 has 48 divisors (see below), whose sum is σ = 16592807411712. Its totient is φ = 6727642115040.

The previous prime is 11211021019963. The next prime is 11211021020027. The reversal of 11211021020001 is 10002012011211.

It is not a de Polignac number, because 11211021020001 - 2⁷ = 11211021019873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211021020051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22947070 + ... + 23430536.

It is an arithmetic number, because the mean of its divisors is an integer number (345683487744).

Almost surely, 2^{11211021020001} is an apocalyptic number.

11211021020001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11211021020001 is a deficient number, since it is larger than the sum of its proper divisors (5381786391711).

11211021020001 is a wasteful number, since it uses less digits than its factorization.

11211021020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484122 (or 484111 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11211021020001 its reverse (10002012011211), we get a palindrome (21213033031212).

The spelling of 11211021020001 in words is "eleven trillion, two hundred eleven billion, twenty-one million, twenty thousand, one".