211210220220102 has 48 divisors (see below), whose sum is σ = 468287520763920. Its totient is φ = 68762740366656.

The previous prime is 211210220220073. The next prime is 211210220220113. The reversal of 211210220220102 is 201022022012112.

It is a happy number.

211210220220102 is a `hidden beast` number, since 2 + 1 + 1 + 210 + 220 + 220 + 10 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 9089208 + ... + 22472964.

It is an arithmetic number, because the mean of its divisors is an integer number (9755990015915).

Almost surely, 2^{211210220220102} is an apocalyptic number.

211210220220102 is an abundant number, since it is smaller than the sum of its proper divisors (257077300543818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211210220220102 is a wasteful number, since it uses less digits than its factorization.

211210220220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13404197 (or 13404194 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211210220220102 its reverse (201022022012112), we get a palindrome (412232242232214).

The spelling of 211210220220102 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty million, two hundred twenty thousand, one hundred two".