210102110202220 has 24 divisors (see below), whose sum is σ = 441216452620944. Its totient is φ = 84040459091136.

The previous prime is 210102110202157. The next prime is 210102110202233. The reversal of 210102110202220 is 22202011201012.

It is a happy number.

It is a super-2 number, since 2×210102110202220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210102110202194 and 210102110202203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19566354 + ... + 28338073.

It is an arithmetic number, because the mean of its divisors is an integer number (18384018859206).

Almost surely, 2^{210102110202220} is an apocalyptic number.

210102110202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210102110202220 is an abundant number, since it is smaller than the sum of its proper divisors (231114342418724).

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

210102110202220 is a wasteful number, since it uses less digits than its factorization.

210102110202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48123729 (or 48123727 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210102110202220 its reverse (22202011201012), we get a palindrome (232304121403232).

The spelling of 210102110202220 in words is "two hundred ten trillion, one hundred two billion, one hundred ten million, two hundred two thousand, two hundred twenty".