2211121006 has 4 divisors (see below), whose sum is σ = 3316681512. Its totient is φ = 1105560502.

The previous prime is 2211120971. The next prime is 2211121019. The reversal of 2211121006 is 6001211122.

2211121006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6001211122 = 2 ⋅3000605561.

It is a super-2 number, since 2×2211121006² = 9778112206348904072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552780250 + ... + 552780253.

It is an arithmetic number, because the mean of its divisors is an integer number (829170378).

Almost surely, 2^2211121006 is an apocalyptic number.

2211121006 is a deficient number, since it is larger than the sum of its proper divisors (1105560506).

2211121006 is a wasteful number, since it uses less digits than its factorization.

2211121006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105560505.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2211121006 is about 47022.5584799466. The cubic root of 2211121006 is about 1302.7792622814.

Adding to 2211121006 its reverse (6001211122), we get a palindrome (8212332128).

The spelling of 2211121006 in words is "two billion, two hundred eleven million, one hundred twenty-one thousand, six".