210020102121222 has 32 divisors (see below), whose sum is σ = 468212017628160. Its totient is φ = 69781598769960.

The previous prime is 210020102121199. The next prime is 210020102121227. The reversal of 210020102121222 is 222121201020012.

It is a happy number.

210020102121222 is a `hidden beast` number, since 210 + 0 + 20 + 1 + 0 + 212 + 1 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 210020102121195 and 210020102121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020102121227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6252814638 + ... + 6252848225.

It is an arithmetic number, because the mean of its divisors is an integer number (14631625550880).

Almost surely, 2^{210020102121222} is an apocalyptic number.

210020102121222 is an abundant number, since it is smaller than the sum of its proper divisors (258191915506938).

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

210020102121222 is a wasteful number, since it uses less digits than its factorization.

210020102121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12505663185 (or 12505663179 counting only the distinct ones).

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

Adding to 210020102121222 its reverse (222121201020012), we get a palindrome (432141303141234).

The spelling of 210020102121222 in words is "two hundred ten trillion, twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred twenty-two".