210022101120121 has 4 divisors (see below), whose sum is σ = 210022322651044. Its totient is φ = 210021879589200.

The previous prime is 210022101120109. The next prime is 210022101120131. The reversal of 210022101120121 is 121021101220012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189331793324521 + 20690307795600 = 13759789^2 + 4548660^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022101120121 - 2⁹ = 210022101119609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022101120095 and 210022101120104.

It is not an unprimeable number, because it can be changed into a prime (210022101120131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109337250 + ... + 111241531.

It is an arithmetic number, because the mean of its divisors is an integer number (52505580662761).

Almost surely, 2^{210022101120121} is an apocalyptic number.

It is an amenable number.

210022101120121 is a deficient number, since it is larger than the sum of its proper divisors (221530923).

210022101120121 is an equidigital number, since it uses as much as digits as its factorization.

210022101120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221530922.

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

Adding to 210022101120121 its reverse (121021101220012), we get a palindrome (331043202340133).

The spelling of 210022101120121 in words is "two hundred ten trillion, twenty-two billion, one hundred one million, one hundred twenty thousand, one hundred twenty-one".