2101222006 has 16 divisors (see below), whose sum is σ = 3396353184. Its totient is φ = 969202944.

The previous prime is 2101221979. The next prime is 2101222007. The reversal of 2101222006 is 6002221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101222007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20311 + ... + 67933.

It is an arithmetic number, because the mean of its divisors is an integer number (212272074).

Almost surely, 2^2101222006 is an apocalyptic number.

2101222006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2101222006 is a deficient number, since it is larger than the sum of its proper divisors (1295131178).

2101222006 is a wasteful number, since it uses less digits than its factorization.

2101222006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49335.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2101222006 is about 45839.0881890118. The cubic root of 2101222006 is about 1280.8275097468.

Adding to 2101222006 its reverse (6002221012), we get a palindrome (8103443018).

The spelling of 2101222006 in words is "two billion, one hundred one million, two hundred twenty-two thousand, six".