210202110111121 has 8 divisors (see below), whose sum is σ = 216983239193088. Its totient is φ = 203421007020000.

The previous prime is 210202110111113. The next prime is 210202110111223. The reversal of 210202110111121 is 121111011202012.

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 210202110111121 - 2³ = 210202110111113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210202110111095 and 210202110111104.

It is not an unprimeable number, because it can be changed into a prime (210202110111821) 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, 10657236 + ... + 23108026.

It is an arithmetic number, because the mean of its divisors is an integer number (27122904899136).

Almost surely, 2^{210202110111121} is an apocalyptic number.

It is an amenable number.

210202110111121 is a deficient number, since it is larger than the sum of its proper divisors (6781129081967).

210202110111121 is a wasteful number, since it uses less digits than its factorization.

210202110111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12995423.

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

Adding to 210202110111121 its reverse (121111011202012), we get a palindrome (331313121313133).

The spelling of 210202110111121 in words is "two hundred ten trillion, two hundred two billion, one hundred ten million, one hundred eleven thousand, one hundred twenty-one".