211210210220102 has 4 divisors (see below), whose sum is σ = 316815315330156. Its totient is φ = 105605105110050.

The previous prime is 211210210220101. The next prime is 211210210220123. The reversal of 211210210220102 is 201022012012112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210210220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52802552555024 + ... + 52802552555027.

It is an arithmetic number, because the mean of its divisors is an integer number (79203828832539).

Almost surely, 2^{211210210220102} is an apocalyptic number.

211210210220102 is a deficient number, since it is larger than the sum of its proper divisors (105605105110054).

211210210220102 is a wasteful number, since it uses less digits than its factorization.

211210210220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105605105110053.

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

Adding to 211210210220102 its reverse (201022012012112), we get a palindrome (412232222232214).

The spelling of 211210210220102 in words is "two hundred eleven trillion, two hundred ten billion, two hundred ten million, two hundred twenty thousand, one hundred two".