11201101021 has 8 divisors (see below), whose sum is σ = 12227269824. Its totient is φ = 10176246720.

The previous prime is 11201101019. The next prime is 11201101033. The reversal of 11201101021 is 12010110211.

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 11201101021 - 2¹ = 11201101019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11201100989 and 11201101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201101081) 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, 310761 + ... + 344926.

It is an arithmetic number, because the mean of its divisors is an integer number (1528408728).

Almost surely, 2^11201101021 is an apocalyptic number.

11201101021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11201101021 is a deficient number, since it is larger than the sum of its proper divisors (1026168803).

11201101021 is a wasteful number, since it uses less digits than its factorization.

11201101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657251.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11201101021 its reverse (12010110211), we get a palindrome (23211211232).

The spelling of 11201101021 in words is "eleven billion, two hundred one million, one hundred one thousand, twenty-one".