202122210121210 has 16 divisors (see below), whose sum is σ = 376365494709000. Its totient is φ = 78060991494976.

The previous prime is 202122210121207. The next prime is 202122210121213. The reversal of 202122210121210 is 12121012221202.

202122210121210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (202122210121207) and next prime (202122210121213).

It can be written as a sum of positive squares in 4 ways, for example, as 114944751270441 + 87177458850769 = 10721229^2 + 9336887^2 .

It is not an unprimeable number, because it can be changed into a prime (202122210121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348486568885 + ... + 348486569464.

Almost surely, 2^{202122210121210} is an apocalyptic number.

202122210121210 is a deficient number, since it is larger than the sum of its proper divisors (174243284587790).

202122210121210 is a wasteful number, since it uses less digits than its factorization.

202122210121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696973138385.

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

Adding to 202122210121210 its reverse (12121012221202), we get a palindrome (214243222342412).

The spelling of 202122210121210 in words is "two hundred two trillion, one hundred twenty-two billion, two hundred ten million, one hundred twenty-one thousand, two hundred ten".