210101220102 has 32 divisors (see below), whose sum is σ = 426546374400. Its totient is φ = 68976772128.

The previous prime is 210101220101. The next prime is 210101220127. The reversal of 210101220102 is 201022101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101220101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2515224 + ... + 2597412.

It is an arithmetic number, because the mean of its divisors is an integer number (13329574200).

Almost surely, 2^210101220102 is an apocalyptic number.

210101220102 is an abundant number, since it is smaller than the sum of its proper divisors (216445154298).

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

210101220102 is a wasteful number, since it uses less digits than its factorization.

210101220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88620.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210101220102 its reverse (201022101012), we get a palindrome (411123321114).

It can be divided in two parts, 2101012 and 20102, that multiplied together give a palindrome (42234543224).

The spelling of 210101220102 in words is "two hundred ten billion, one hundred one million, two hundred twenty thousand, one hundred two".