11100212212001 has 4 divisors (see below), whose sum is σ = 12109322413104. Its totient is φ = 10091102010900.

The previous prime is 11100212211997. The next prime is 11100212212009. The reversal of 11100212212001 is 10021221200111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11100212212001 - 2² = 11100212211997 is a prime.

It is a super-2 number, since 2×11100212212001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100212212009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504555100535 + ... + 504555100556.

It is an arithmetic number, because the mean of its divisors is an integer number (3027330603276).

Almost surely, 2^{11100212212001} is an apocalyptic number.

11100212212001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11100212212001 is a deficient number, since it is larger than the sum of its proper divisors (1009110201103).

11100212212001 is a wasteful number, since it uses less digits than its factorization.

11100212212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009110201102.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11100212212001 its reverse (10021221200111), we get a palindrome (21121433412112).

It can be divided in two parts, 11 and 100212212001, that multiplied together give a palindrome (1102334332011).

The spelling of 11100212212001 in words is "eleven trillion, one hundred billion, two hundred twelve million, two hundred twelve thousand, one".