2211201111001 has 8 divisors (see below), whose sum is σ = 2253318349824. Its totient is φ = 2169273163920.

The previous prime is 2211201110969. The next prime is 2211201111029. The reversal of 2211201111001 is 1001111021122.

It is a happy number.

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 2211201111001 - 2⁵ = 2211201110969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211201111061) 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, 47299351 + ... + 47346076.

It is an arithmetic number, because the mean of its divisors is an integer number (281664793728).

Almost surely, 2^{2211201111001} is an apocalyptic number.

It is an amenable number.

2211201111001 is a deficient number, since it is larger than the sum of its proper divisors (42117238823).

2211201111001 is an equidigital number, since it uses as much as digits as its factorization.

2211201111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94645871.

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

Adding to 2211201111001 its reverse (1001111021122), we get a palindrome (3212312132123).

The spelling of 2211201111001 in words is "two trillion, two hundred eleven billion, two hundred one million, one hundred eleven thousand, one".