210001222020202 has 8 divisors (see below), whose sum is σ = 318120663060612. Its totient is φ = 103961001000000.

The previous prime is 210001222020199. The next prime is 210001222020209. The reversal of 210001222020202 is 202020222100012.

It can be written as a sum of positive squares in 2 ways, for example, as 205229090020761 + 4772131999441 = 14325819^2 + 2184521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×210001222020202² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210001222020209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519805004799 + ... + 519805005202.

Almost surely, 2^{210001222020202} is an apocalyptic number.

210001222020202 is a deficient number, since it is larger than the sum of its proper divisors (108119441040410).

210001222020202 is a wasteful number, since it uses less digits than its factorization.

210001222020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039610010104.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210001222020202 its reverse (202020222100012), we get a palindrome (412021444120214).

The spelling of 210001222020202 in words is "two hundred ten trillion, one billion, two hundred twenty-two million, twenty thousand, two hundred two".