210121022202 has 96 divisors (see below), whose sum is σ = 534119271552. Its totient is φ = 53918721792.

The previous prime is 210121022201. The next prime is 210121022213. The reversal of 210121022202 is 202220121012.

210121022202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (210121022201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137413 + ... + 662664.

It is an arithmetic number, because the mean of its divisors is an integer number (5563742412).

Almost surely, 2^210121022202 is an apocalyptic number.

210121022202 is an abundant number, since it is smaller than the sum of its proper divisors (323998249350).

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

210121022202 is a wasteful number, since it uses less digits than its factorization.

210121022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800152 (or 800139 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210121022202 its reverse (202220121012), we get a palindrome (412341143214).

The spelling of 210121022202 in words is "two hundred ten billion, one hundred twenty-one million, twenty-two thousand, two hundred two".