210021101010202 has 16 divisors (see below), whose sum is σ = 317242844958312. Its totient is φ = 104275210152960.

The previous prime is 210021101010187. The next prime is 210021101010211. The reversal of 210021101010202 is 202010101120012.

It can be written as a sum of positive squares in 4 ways, for example, as 36876847262161 + 173144253748041 = 6072631^2 + 13158429^2 .

It is a super-3 number, since 3×210021101010202³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430788163 + ... + 431275414.

Almost surely, 2^{210021101010202} is an apocalyptic number.

210021101010202 is a deficient number, since it is larger than the sum of its proper divisors (107221743948110).

210021101010202 is a wasteful number, since it uses less digits than its factorization.

210021101010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862064433.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210021101010202 its reverse (202010101120012), we get a palindrome (412031202130214).

The spelling of 210021101010202 in words is "two hundred ten trillion, twenty-one billion, one hundred one million, ten thousand, two hundred two".