11220111120001 has 8 divisors (see below), whose sum is σ = 12823113094400. Its totient is φ = 9617141384928.

The previous prime is 11220111119981. The next prime is 11220111120067. The reversal of 11220111120001 is 10002111102211.

It is a happy number.

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

It is not a de Polignac number, because 11220111120001 - 2¹⁹ = 11220110595713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220111120091) 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, 7309401 + ... + 8710198.

It is an arithmetic number, because the mean of its divisors is an integer number (1602889136800).

Almost surely, 2^{11220111120001} is an apocalyptic number.

It is an amenable number.

11220111120001 is a deficient number, since it is larger than the sum of its proper divisors (1603001974399).

11220111120001 is a wasteful number, since it uses less digits than its factorization.

11220111120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16119663.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11220111120001 its reverse (10002111102211), we get a palindrome (21222222222212).

The spelling of 11220111120001 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty thousand, one".