11101022100021 has 48 divisors (see below), whose sum is σ = 17253154440000. Its totient is φ = 6330469001472.

The previous prime is 11101022100019. The next prime is 11101022100041. The reversal of 11101022100021 is 12000122010111.

It is not a de Polignac number, because 11101022100021 - 2¹ = 11101022100019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101022100041) 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, 161484385 + ... + 161553113.

It is an arithmetic number, because the mean of its divisors is an integer number (359440717500).

Almost surely, 2^{11101022100021} is an apocalyptic number.

It is an amenable number.

11101022100021 is a deficient number, since it is larger than the sum of its proper divisors (6152132339979).

11101022100021 is a wasteful number, since it uses less digits than its factorization.

11101022100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70978 (or 70971 counting only the distinct ones).

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

Adding to 11101022100021 its reverse (12000122010111), we get a palindrome (23101144110132).

It can be divided in two parts, 1110102 and 2100021, that added together give a palindrome (3210123).

The spelling of 11101022100021 in words is "eleven trillion, one hundred one billion, twenty-two million, one hundred thousand, twenty-one".