212020002121210 has 8 divisors (see below), whose sum is σ = 381636003818196. Its totient is φ = 84808000848480.

The previous prime is 212020002121199. The next prime is 212020002121219. The reversal of 212020002121210 is 12121200020212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 211421574557649 + 598427563561 = 14540343^2 + 773581^2 .

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 (212020002121219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10601000106051 + ... + 10601000106070.

Almost surely, 2^{212020002121210} is an apocalyptic number.

212020002121210 is a deficient number, since it is larger than the sum of its proper divisors (169616001696986).

212020002121210 is a wasteful number, since it uses less digits than its factorization.

212020002121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21202000212128.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212020002121210 its reverse (12121200020212), we get a palindrome (224141202141422).

It can be divided in two parts, 212020002 and 121210, that added together give a palindrome (212141212).

The spelling of 212020002121210 in words is "two hundred twelve trillion, twenty billion, two million, one hundred twenty-one thousand, two hundred ten".