210121101011210 has 8 divisors (see below), whose sum is σ = 378217981820196. Its totient is φ = 84048440404480.

The previous prime is 210121101011203. The next prime is 210121101011299. The reversal of 210121101011210 is 12110101121012.

210121101011210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 207921951411001 + 2199149600209 = 14419499^2 + 1482953^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10506055050551 + ... + 10506055050570.

Almost surely, 2^{210121101011210} is an apocalyptic number.

210121101011210 is a deficient number, since it is larger than the sum of its proper divisors (168096880808986).

210121101011210 is a wasteful number, since it uses less digits than its factorization.

210121101011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21012110101128.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 210121101011210 its reverse (12110101121012), we get a palindrome (222231202132222).

The spelling of 210121101011210 in words is "two hundred ten trillion, one hundred twenty-one billion, one hundred one million, eleven thousand, two hundred ten".