210021122011210 has 16 divisors (see below), whose sum is σ = 378039744361800. Its totient is φ = 84008065528576.

The previous prime is 210021122011177. The next prime is 210021122011249. The reversal of 210021122011210 is 12110221120012.

It can be written as a sum of positive squares in 4 ways, for example, as 209608748692641 + 412373318569 = 14477871^2 + 642163^2 .

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, 45602755 + ... + 49996534.

Almost surely, 2^{210021122011210} is an apocalyptic number.

210021122011210 is a deficient number, since it is larger than the sum of its proper divisors (168018622350590).

210021122011210 is a wasteful number, since it uses less digits than its factorization.

210021122011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95818985.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210021122011210 its reverse (12110221120012), we get a palindrome (222131343131222).

The spelling of 210021122011210 in words is "two hundred ten trillion, twenty-one billion, one hundred twenty-two million, eleven thousand, two hundred ten".