202011221210 has 8 divisors (see below), whose sum is σ = 363620198196. Its totient is φ = 80804488480.

The previous prime is 202011221197. The next prime is 202011221213. The reversal of 202011221210 is 12122110202.

It can be written as a sum of positive squares in 2 ways, for example, as 187427519041 + 14583702169 = 432929^2 + 120763^2 .

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

It is not an unprimeable number, because it can be changed into a prime (202011221213) 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, 10100561051 + ... + 10100561070.

Almost surely, 2^202011221210 is an apocalyptic number.

202011221210 is a deficient number, since it is larger than the sum of its proper divisors (161608976986).

202011221210 is a wasteful number, since it uses less digits than its factorization.

202011221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201122128.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202011221210 its reverse (12122110202), we get a palindrome (214133331412).

The spelling of 202011221210 in words is "two hundred two billion, eleven million, two hundred twenty-one thousand, two hundred ten".