211220201221102 has 8 divisors (see below), whose sum is σ = 316832952757896. Its totient is φ = 105609216968472.

The previous prime is 211220201221091. The next prime is 211220201221163. The reversal of 211220201221102 is 201122102022112.

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

It is a super-2 number, since 2×211220201221102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211220201221102.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 441522208 + ... + 442000339.

It is an arithmetic number, because the mean of its divisors is an integer number (39604119094737).

Almost surely, 2^{211220201221102} is an apocalyptic number.

211220201221102 is a deficient number, since it is larger than the sum of its proper divisors (105612751536794).

211220201221102 is a wasteful number, since it uses less digits than its factorization.

211220201221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883642082.

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

Adding to 211220201221102 its reverse (201122102022112), we get a palindrome (412342303243214).

The spelling of 211220201221102 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred one million, two hundred twenty-one thousand, one hundred two".