210021101010122 has 8 divisors (see below), whose sum is σ = 315094746192996. Its totient is φ = 104989518945792.

The previous prime is 210021101010047. The next prime is 210021101010131. The reversal of 210021101010122 is 221010101120012.

It can be written as a sum of positive squares in 2 ways, for example, as 191474219931241 + 18546881078881 = 13837421^2 + 4306609^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 210021101010097 and 210021101010106.

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, 10515767153 + ... + 10515787124.

Almost surely, 2^{210021101010122} is an apocalyptic number.

210021101010122 is a deficient number, since it is larger than the sum of its proper divisors (105073645182874).

210021101010122 is a wasteful number, since it uses less digits than its factorization.

210021101010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031559272.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210021101010122 its reverse (221010101120012), we get a palindrome (431031202130134).

The spelling of 210021101010122 in words is "two hundred ten trillion, twenty-one billion, one hundred one million, ten thousand, one hundred twenty-two".