210021212112202 has 8 divisors (see below), whose sum is σ = 315031883731812. Its totient is φ = 105010584201600.

The previous prime is 210021212112197. The next prime is 210021212112203. The reversal of 210021212112202 is 202211212120012.

It can be written as a sum of positive squares in 2 ways, for example, as 209319522758641 + 701689353561 = 14467879^2 + 837669^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 210021212112202.

It is not an unprimeable number, because it can be changed into a prime (210021212112203) 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, 6905952 + ... + 21627172.

Almost surely, 2^{210021212112202} is an apocalyptic number.

210021212112202 is a deficient number, since it is larger than the sum of its proper divisors (105010671619610).

210021212112202 is a wasteful number, since it uses less digits than its factorization.

210021212112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21854504.

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

Adding to 210021212112202 its reverse (202211212120012), we get a palindrome (412232424232214).

The spelling of 210021212112202 in words is "two hundred ten trillion, twenty-one billion, two hundred twelve million, one hundred twelve thousand, two hundred two".