210112022121101 has 4 divisors (see below), whose sum is σ = 210112073955804. Its totient is φ = 210111970286400.

The previous prime is 210112022121097. The next prime is 210112022121137. The reversal of 210112022121101 is 101121220211012.

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 176838160398601 + 33273861722500 = 13298051^2 + 5768350^2 .

It is a cyclic number.

It is not a de Polignac number, because 210112022121101 - 2² = 210112022121097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210112022121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112022121181) 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, 19268540 + ... + 28133621.

It is an arithmetic number, because the mean of its divisors is an integer number (52528018488951).

Almost surely, 2^{210112022121101} is an apocalyptic number.

It is an amenable number.

210112022121101 is a deficient number, since it is larger than the sum of its proper divisors (51834703).

210112022121101 is an equidigital number, since it uses as much as digits as its factorization.

210112022121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51834702.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210112022121101 its reverse (101121220211012), we get a palindrome (311233242332113).

The spelling of 210112022121101 in words is "two hundred ten trillion, one hundred twelve billion, twenty-two million, one hundred twenty-one thousand, one hundred one".