11222211101 has 8 divisors (see below), whose sum is σ = 11340564408. Its totient is φ = 11104000000.

The previous prime is 11222211089. The next prime is 11222211107. The reversal of 11222211101 is 10111222211.

It can be written as a sum of positive squares in 4 ways, for example, as 9244630201 + 1977580900 = 96149^2 + 44470^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222211101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222211107) 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, 127001 + ... + 196401.

It is an arithmetic number, because the mean of its divisors is an integer number (1417570551).

Almost surely, 2^11222211101 is an apocalyptic number.

It is an amenable number.

11222211101 is a deficient number, since it is larger than the sum of its proper divisors (118353307).

11222211101 is a wasteful number, since it uses less digits than its factorization.

11222211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71103.

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

Adding to 11222211101 its reverse (10111222211), we get a palindrome (21333433312).

It can be divided in two parts, 11222211 and 101, that multiplied together give a palindrome (1133443311).

The spelling of 11222211101 in words is "eleven billion, two hundred twenty-two million, two hundred eleven thousand, one hundred one".