11100212212111 has 8 divisors (see below), whose sum is σ = 12499945717248. Its totient is φ = 9765582591000.

The previous prime is 11100212212091. The next prime is 11100212212189. The reversal of 11100212212111 is 11121221200111.

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 11100212212111 - 2¹³ = 11100212203919 is a prime.

It is a super-2 number, since 2×11100212212111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100212212211) 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, 16275970645 + ... + 16275971326.

It is an arithmetic number, because the mean of its divisors is an integer number (1562493214656).

Almost surely, 2^{11100212212111} is an apocalyptic number.

11100212212111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11100212212111 is a deficient number, since it is larger than the sum of its proper divisors (1399733505137).

11100212212111 is a wasteful number, since it uses less digits than its factorization.

11100212212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32551942013.

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

Adding to 11100212212111 its reverse (11121221200111), we get a palindrome (22221433412222).

The spelling of 11100212212111 in words is "eleven trillion, one hundred billion, two hundred twelve million, two hundred twelve thousand, one hundred eleven".