2211201220011 has 16 divisors (see below), whose sum is σ = 3369955538688. Its totient is φ = 1263353781600.

The previous prime is 2211201220009. The next prime is 2211201220027. The reversal of 2211201220011 is 1100221021122.

It is not a de Polignac number, because 2211201220011 - 2¹ = 2211201220009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211201220211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7763985 + ... + 8043746.

It is an arithmetic number, because the mean of its divisors is an integer number (210622221168).

Almost surely, 2^{2211201220011} is an apocalyptic number.

2211201220011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2211201220011 is a deficient number, since it is larger than the sum of its proper divisors (1158754318677).

2211201220011 is a wasteful number, since it uses less digits than its factorization.

2211201220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15814402.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2211201220011 its reverse (1100221021122), we get a palindrome (3311422241133).

The spelling of 2211201220011 in words is "two trillion, two hundred eleven billion, two hundred one million, two hundred twenty thousand, eleven".