210020101111121 has 8 divisors (see below), whose sum is σ = 240023810466624. Its totient is φ = 180016601197680.

The previous prime is 210020101111061. The next prime is 210020101111129. The reversal of 210020101111121 is 121111101020012.

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

It is a cyclic number.

It is not a de Polignac number, because 210020101111121 - 2¹⁸ = 210020100848977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210020101111096 and 210020101111105.

It is not an unprimeable number, because it can be changed into a prime (210020101111129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50205830 + ... + 54227903.

It is an arithmetic number, because the mean of its divisors is an integer number (30002976308328).

Almost surely, 2^{210020101111121} is an apocalyptic number.

It is an amenable number.

210020101111121 is a deficient number, since it is larger than the sum of its proper divisors (30003709355503).

210020101111121 is a wasteful number, since it uses less digits than its factorization.

210020101111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104721031.

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

Adding to 210020101111121 its reverse (121111101020012), we get a palindrome (331131202131133).

The spelling of 210020101111121 in words is "two hundred ten trillion, twenty billion, one hundred one million, one hundred eleven thousand, one hundred twenty-one".