122202210020021 has 8 divisors (see below), whose sum is σ = 124207325427000. Its totient is φ = 120197152693440.

The previous prime is 122202210019991. The next prime is 122202210020027. The reversal of 122202210020021 is 120020012202221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5724391204900 + 116477818815121 = 2392570^2 + 10792489^2 .

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 122202210020021 - 2²² = 122202205825717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202210020027) 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, 10267406 + ... + 18703583.

It is an arithmetic number, because the mean of its divisors is an integer number (15525915678375).

Almost surely, 2^{122202210020021} is an apocalyptic number.

It is an amenable number.

122202210020021 is a deficient number, since it is larger than the sum of its proper divisors (2005115406979).

122202210020021 is an equidigital number, since it uses as much as digits as its factorization.

122202210020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29040199.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122202210020021 its reverse (120020012202221), we get a palindrome (242222222222242).

The spelling of 122202210020021 in words is "one hundred twenty-two trillion, two hundred two billion, two hundred ten million, twenty thousand, twenty-one".