202021212011210 has 16 divisors (see below), whose sum is σ = 364989996426600. Its totient is φ = 80508081514176.

The previous prime is 202021212011167. The next prime is 202021212011233. The reversal of 202021212011210 is 12110212120202.

It can be written as a sum of positive squares in 4 ways, for example, as 176123077272769 + 25898134738441 = 13271137^2 + 5089021^2 .

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, 37550408465 + ... + 37550413844.

Almost surely, 2^{202021212011210} is an apocalyptic number.

202021212011210 is a deficient number, since it is larger than the sum of its proper divisors (162968784415390).

202021212011210 is a wasteful number, since it uses less digits than its factorization.

202021212011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75100822585.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202021212011210 its reverse (12110212120202), we get a palindrome (214131424131412).

The spelling of 202021212011210 in words is "two hundred two trillion, twenty-one billion, two hundred twelve million, eleven thousand, two hundred ten".