11012201021 has 8 divisors (see below), whose sum is σ = 11368665600. Its totient is φ = 10655813520.

The previous prime is 11012201009. The next prime is 11012201023. The reversal of 11012201021 is 12010221011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11012201021 - 2¹⁸ = 11011938877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012200993 and 11012201011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012201023) 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, 463295 + ... + 486483.

It is an arithmetic number, because the mean of its divisors is an integer number (1421083200).

Almost surely, 2^11012201021 is an apocalyptic number.

It is an amenable number.

11012201021 is a deficient number, since it is larger than the sum of its proper divisors (356464579).

11012201021 is a wasteful number, since it uses less digits than its factorization.

11012201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38539.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11012201021 its reverse (12010221011), we get a palindrome (23022422032).

The spelling of 11012201021 in words is "eleven billion, twelve million, two hundred one thousand, twenty-one".