211020111222002 has 8 divisors (see below), whose sum is σ = 316530607882476. Its totient is φ = 105509908594512.

The previous prime is 211020111221981. The next prime is 211020111222007. The reversal of 211020111222002 is 200222111020112.

It can be written as a sum of positive squares in 2 ways, for example, as 198913253602921 + 12106857619081 = 14103661^2 + 3479491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (211020111222007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71705213 + ... + 74590064.

Almost surely, 2^{211020111222002} is an apocalyptic number.

211020111222002 is a deficient number, since it is larger than the sum of its proper divisors (105510496660474).

211020111222002 is a wasteful number, since it uses less digits than its factorization.

211020111222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147016492.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211020111222002 its reverse (200222111020112), we get a palindrome (411242222242114).

The spelling of 211020111222002 in words is "two hundred eleven trillion, twenty billion, one hundred eleven million, two hundred twenty-two thousand, two".