210121012102222 has 12 divisors (see below), whose sum is σ = 341291229716880. Its totient is φ = 96978928662408.

The previous prime is 210121012102187. The next prime is 210121012102223. The reversal of 210121012102222 is 222201210121012.

It is a self number, because there is not a number n which added to its sum of digits gives 210121012102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210121012102223) 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 5 ways as a sum of consecutive naturals, for example, 310829899222 + ... + 310829899897.

It is an arithmetic number, because the mean of its divisors is an integer number (28440935809740).

Almost surely, 2^{210121012102222} is an apocalyptic number.

210121012102222 is a deficient number, since it is larger than the sum of its proper divisors (131170217614658).

210121012102222 is a wasteful number, since it uses less digits than its factorization.

210121012102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621659799147 (or 621659799134 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210121012102222 its reverse (222201210121012), we get a palindrome (432322222223234).

The spelling of 210121012102222 in words is "two hundred ten trillion, one hundred twenty-one billion, twelve million, one hundred two thousand, two hundred twenty-two".