11112112201021 has 8 divisors (see below), whose sum is σ = 12352918774784. Its totient is φ = 9926452586160.

The previous prime is 11112112201009. The next prime is 11112112201031. The reversal of 11112112201021 is 12010221121111.

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 11112112201021 - 2¹³ = 11112112192829 is a prime.

It is a super-2 number, since 2×11112112201021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112112200986 and 11112112201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112112201031) 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, 13786739301 + ... + 13786740106.

It is an arithmetic number, because the mean of its divisors is an integer number (1544114846848).

Almost surely, 2^{11112112201021} is an apocalyptic number.

It is an amenable number.

11112112201021 is a deficient number, since it is larger than the sum of its proper divisors (1240806573763).

11112112201021 is a wasteful number, since it uses less digits than its factorization.

11112112201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27573479451.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11112112201021 its reverse (12010221121111), we get a palindrome (23122333322132).

The spelling of 11112112201021 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, two hundred one thousand, twenty-one".