2211212222011 has 8 divisors (see below), whose sum is σ = 2388128699600. Its totient is φ = 2035270491552.

The previous prime is 2211212221993. The next prime is 2211212222069. The reversal of 2211212222011 is 1102222121122.

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 2211212222011 - 2⁵ = 2211212221979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211212222011.

It is not an unprimeable number, because it can be changed into a prime (2211212222071) 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, 243682065 + ... + 243691138.

It is an arithmetic number, because the mean of its divisors is an integer number (298516087450).

Almost surely, 2^{2211212222011} is an apocalyptic number.

2211212222011 is a deficient number, since it is larger than the sum of its proper divisors (176916477589).

2211212222011 is a wasteful number, since it uses less digits than its factorization.

2211212222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487373565.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2211212222011 its reverse (1102222121122), we get a palindrome (3313434343133).

The spelling of 2211212222011 in words is "two trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty-two thousand, eleven".